LINCHR H Series User Manual Download Page 42

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Charging record inquiry:

Click the Charging Record button to

view the charging record of the

current charger. If it has never used

for charging, the inquiry interface

will be displayed as empty, otherwise

the charging record will be displayed

in the APP according to the current

charging number and maximum

charging number of the charger.

Click the Export Charging Record

File button in the lower right corner

of the charging record interface (red

circle in the 2nd figure on in the

right) to export the charging record

file in Excel format and it will be

stored in the mobile phone.

Summary of Contents for H Series

Page 1: ......

Page 2: ...l Parametes 7 6 Installation 10 7 Introduction to Operation Areas 25 8 Introduction to Mobile APP 27 9 OCPP Connection 55 10 Charging Operation 59 11 Power Management external smart meter or CT 62 12 Load Balancing 63 13 Upgrade of the System 77 14 SIM Card Configuration 81 15 Troubleshooting 83 ...

Page 3: ...1 Revision Records Rev Date Modified content Proposed by V1 0 2022 04 Filing for the first time LINCHR R D Department V1 1 2022 05 Load Balancing and Pedestal Installation are added LINCHR R D Department ...

Page 4: ...requirements of this manual Due to product iteration the charger manufacturer has the right to upgrade the product when necessary All rights reserved This manual shall not be copied without the written authorization of LINCHR 2 1 2 About safety This product adopts the most advanced technology and complies with safety and health regulations In case of violation of regulations or failure to follow t...

Page 5: ...er shall be reliably connected through the charging cable It is strictly forbidden to move modify or connect the charger without using protection devices safety or monitoring equipment It is strictly forbidden to reconfigure or modify product Product can only run under permitted conditions 2 1 3 About maintenance Do not open the charger Do not touch circuit boards and electronic components If the ...

Page 6: ...ger Operation and installation without the permission of the manufacturer The capacity of components is not in accordance with the capacity specified by the manufacturer Neglect correct operation flows carry out incorrect operation etc Defects caused by materials provided by the user itself Improper use Incorrect modification and repair Disasters impact of foreign body and force majeure etc The ma...

Page 7: ...e It is not allowed to operate the charger in a loose state not installed reliably which does not meet the use requirements Do not disassemble tamper with or deactivate the safety device No technical changes shall be made to the product without the permission of the manufacturer In addition if the operation is illegal no warranty and claim are allowed The product can only be operated under the con...

Page 8: ...professionals Electrical Engineer Technical Specialist are only allowed to carry out installation initial operation inspection and configuration and the professionals must have read and understood this manual ...

Page 9: ...Type 2 Dimensions width height depth 260 260 100 mm 260 260 110 mm 260 260 100 mm 260 260 110 mm Weight 4kg 2 5kg 4kg LCHS11C 5kg LCHS22C 2 5kg LCHS11B 2 7kg LCHS22B Material of shell PC ASA UL94 V0 PC ASA UL94 V0 PC ASA UL94 V0 PC ASA UL94 V0 Heat dissipation Natural cooling Natural cooling Natural cooling Natural cooling Installation Wall mounted pedestal Wall mounted pedestal Wall mounted pedes...

Page 10: ... start Status display LED strip display red green blue APP display LED strip display red green blue APP display LED strip display red green blue APP display LED strip display red green blue APP display Electric energy metering Metering chip 1 Metering chip 1 Metering chip 1 Metering chip 1 Communication WiFi Ethernet 4G Bluetooth RS485 WiFi Ethernet 4G Bluetooth RS485 WiFi Ethernet 4G Bluetooth RS...

Page 11: ...rtemperature protection Over temperature protection of charging plug base Over temperature protection of incoming terminal CP protection Relay adhesion protection Open phase protection Electric leakage protection Ground protection Overcurrent protection external MCB Overvoltage protection Undervoltage protection Relay overtemperature protection Over temperature protection of charging plug base Ove...

Page 12: ...st flammable and explosive gas and liquid away from heat sources and corrosive environment The installation altitude of the charger is 2000 meters 6 2 Accessories for installation The following accessories are required for the charger installation User manual 1 copy see the charger accessory bag Expansion screws 4 sets for CASE B version and 7 sets for CASE C version see the charger accessory bag ...

Page 13: ...Install residual current protection device According to IEC61851 1 standard the charger must include electric leakage protection function When AC electric leakage AC electric leakage signal 30mA or DC electric leakage DC leakage signal 6 mA occurs during charging power supply for charging will be disconnected Type B electric leakage detection device of the charger is built in the charger The selec...

Page 14: ...0VAC in a power supply system without neutral wire the voltage between phase lines cannot be higher than the rated voltage 240VAC For the three phase charger in the power supply system with neutral line the voltage between the phase line and the neutral line shall not be higher than the rated voltage 240VAC 6 8 Wall Mounting The following are the steps for installing the charger on the wall taking...

Page 15: ...ioning cardboard 1 piece Back pegboard 1 2 Remove back bracket Remove one screw fixing the exterior trim cover plate and remove the exterior trim cover Remove one screw fixing the sealing cover and remove the sealing cover Remove a screw fixing the back bracket slide the back bracket down to remove it from the back of the whole machine ...

Page 16: ...nter of the positioning cardboard to the ground is 1300mm Check whether the positioning cardboard is horizontally aligned with the wall surface Whole charger Through the four holes on the whole charger positioning cardboard mark the punching position on the wall surface Charging cable holder Through the three holes on the charging cable holder positioning cardboard mark the punching position on th...

Page 17: ...ls hammers etc to make the expansion pipes into place Charging cable holder insert two expansion tubes into two wall surface mounting holes and press them into place by hand If they are not in place after pressing by hand please use tools hammers etc to make the expansion tubes into place 6 Fix the back bracket Fix the back bracket Fix the back bracket on the wall with 4 expansion screws fix it re...

Page 18: ...harger down from top to bottom fix it on the back bracket Install 1 screw for fixing the back back bracket 8 Fix the charging cable holder When fixing the charging cable holder on the wall use 3 expansion screws for reliable fixation ...

Page 19: ...ded to use a 6012 tube shaped terminal Remove the waterproof gland and fastening ring and the power cord passes through the waterproof gland and fastening ring Connect the power cord according to the marks on the sealing cover Install the power supply protection cover Install the sealing cover and fix it reliably with one screw Install the exterior trim cover and fix it reliably with one screw Ins...

Page 20: ...ht N Blue PE Yellow green L1 Brown L3 Grey L2 Black 6 9 Charger Installation on pedestal If the customer decides not to install the charger on the wall while install it on the pedestal it shall be a special pedestal provided by the supplier please follow the following steps Please note that when installing on pedestal the installer needs to provide matching screws and other accessories according t...

Page 21: ...atform must be equipped with M8 expansion bolts and PVC conduit with a diameter of 40mm wiring for power supply inlet which should be embedded under the base The installation platform must be level stable and safe avoid unreliable installation of pedestal If it is a newly poured concrete installation platform please continue the installation after the concrete has solidified ...

Page 22: ...to be 15 30mm The length of the power supply incoming line passing through the PVC conduit on the ground cannot be less than 1300mm so that make it convenient for installing the power supply incoming line 3 Tilt the pedestal and make power supply incoming line pass through the bottom until the incoming line is seen at the cable outlet in the middle of the pedestal ...

Page 23: ...ion bolts on the installation platform and fix the pedestal with M8 screws and flat pad Finally install the left and right side plates of the pedestal base 5 Remove the back bracket on the back of the charger Continue to remove the four M6 20 screws of the pedestal suspension plate Align the back bracket with the four screw holes of the pedestal hanging plate and fix the back pegboard on the pedes...

Page 24: ...th three M4 8 screws and fix it reliably 7 Install the charger on the back bracket slide the charger down from top to bottom and insert the back pegboard completely and fix the charger and the back bracket with screws to ensure reliable installation of the charger Up to 2 pieces charger can be installed on one pedestal ...

Page 25: ...commended to use a 6012 tube shaped terminal Remove the waterproof gland and fastening ring and the power cord passes through the waterproof gland and fastening ring Connect the power cord according to the marks on the sealing cover Install the power supply protection cover Install the sealing cover and fix it reliably with one screw Install the exterior trim cover and fix it reliably with one scr...

Page 26: ...d to the power supply It should be noted that the power supply incoming line must be fixed tightly with waterproof gland to avoid pulling by external force Definition of supply power incoming lines from left to right N Blue PE Yellow green L1 Brown L3 Grey L2 Black ...

Page 27: ...play functions of each areas are as follows Display Type Description of functions AREA 1 RFID card swiping area Used for swiping RFID card starting and stopping charging AREA 2 LED indicator LED indicator ring displays the charger status with different colors 7 2 Card swiping area AREA 1 This area is RFID card working area RFID card is used to start and stop charging To perform RFID card swiping t...

Page 28: ... inspection and the charger is connected to the power supply Green Slowly flash Standby mode the charger completes the self inspection Blue Fast flash Insert the charging plug or stop charging Blue Slowly flash Charging mode the charger is conducting the charging Red Detection and alarm for internal protection of the charger ...

Page 29: ... the charger parameters without contact APP has good usability and reliability and ensures the security and reliability of information 8 2 Running environment The APP can run on the mobile phone powered by Android 8 0 and IOS 11 0 and above 8 3 APP installation Android mobile phones downloads and installs the APP through major domestic application markets Huawei application market Xiaomi applicati...

Page 30: ...r into the APP main interface Left figure Bluetooth is not turned on Right figure Turn on Bluetooth and enter into the main interface of APP 2 User configuration Click the User Configuration button red circle in the main interface of the APP to enter the personalized configuration interface of the APP and set the avatar currently users only can select avatar from the avatars built in the APP nickn...

Page 31: ...ay the name of the charger within the current Bluetooth range Select one charger and click the connect button to connect the charger the name of the currently connected the charger will be displayed in the middle of the main interface of APP At this time click the name of the charger to enter the operation interface of the charger ...

Page 32: ...ssword settings twice are different the user will be prompted to configure the same password twice There is an eye shaped icon the red column in the right second figure behind the password input column and the password can be displayed after clicking it 5 When exiting the APP and logging in again you need to input the password configured then you can enter the charger operation interface If the pa...

Page 33: ...ng current 3 Locking state of electronic lock CASE B 4 Start stop button of the charger 5 Boost acceleration click this button under ECO ECO mode the charger will switch to FAST mode for charging and click it again to return to the original state 6 Charging information display charging voltage charging current fault status etc 7 Setting of time period of fast charging 8 Statistics of charge ...

Page 34: ...ger 1 Standby 2 The charger is plugging in 3 Charging is starting 4 Charging is in progress 5 Pause charging 6 Charging is completed 7 Failure 8 Alarm 9 Fault and alarm fault and alarm statuses are displayed at the same time ...

Page 35: ... clockwise the current increase to 24A from 16A The maximum current of 7kW and 22kW chargers can be set to 32A and the maximum current of 11kW charger can be set to 16A 9 Locking of the charger The charger can be set to State Locking When the charger is locked under non charging state the charger cannot start charging When the charger is locked during charging the charger cannot start the next cha...

Page 36: ...y Once the timing start time needs to be earlier than the timing end time and you can set up to four timing charging lists the 2nd figure in the right If the time of configured timing charging list is repeated with the existing timing charging list it will prompt that the current timing charging periods are repeated After completing the setting of the timing charging list you can enable disable an...

Page 37: ...35 11 Statistics of charge Click on the charge statistics on the main interface of APP to view the charge of the charger in every day of the latest month and every month of the latest year ...

Page 38: ...w and configure the functions of the charger It includes the charger information viewing the charger network configuration electrical system configuration charging mode configuration charging record viewing fault self diagnosis password reset operation mode configuration OCPP configuration and load balancing setting Click on the configuration items to read and configure each function of the charge...

Page 39: ...ion Click the Charger Info button to view the information of current charger including the charger board SN serial number the charger SN serial number software version and the IEMI number ICCID number and IMSI number of SIM card ...

Page 40: ...IP subnet mask and gateway must be configured then the default networking mode can be used If you choose WiFi for networking you need to configure your user name and password If you choose Ethernet you need to modify IP information according to network requirements If you choose 4G you need to insert SIM card into the charger If the network settings has change the charger will automatically restar...

Page 41: ...n to switch the operation mode of the charger when the charger is idle no charging plug is inserted It is divided into online mode connecting platform for operation and offline mode local offline operation Online mode the charger is connected to the platform and all charging operations are controlled by the platform Offline mode the charger is connected with APP and all charging operations are con...

Page 42: ... empty otherwise the charging record will be displayed in the APP according to the current charging number and maximum charging number of the charger Click the Export Charging Record File button in the lower right corner of the charging record interface red circle in the 2nd figure on in the right to export the charging record file in Excel format and it will be stored in the mobile phone ...

Page 43: ...Fault self inspection Click the Self inspection button to export a charger inspection report file and it will be stored in the mobile phone The function is only used for manufacturers to analyze fault states ...

Page 44: ...ation failure is as follows 1 If the original password is input incorrectly it will prompt that the password setting failed 2 If the new password input twice is inconsistent it will prompt that two new password is inconsistent 3 If the new and old passwords input are same it will prompt that the new and old passwords are same ...

Page 45: ... mode and the vehicle will be charged immediately after the charging plug is inserted If after the charger is switched to online mode authentication free charging will be prohibited The electronic lock failure shield function is when the charger reports the electronic lock failure it needs to continue charging Users can select the electronic lock failure shield function which will be executed afte...

Page 46: ...44 21 OCPP settings Click the OCPP button to configure the OCPP server address and CPID for the charger The server address must be used to log in the OCPP server under online mode for the charger ...

Page 47: ... supply system 3 Configure the master slave mode of the charger 4 Configure the charging mode 5 Configure the charger networking mode WiFi and Ethernet 6 Configure the usable grid current under ECO mode and the setting range is 0 5A 7 Selection of master charger electricity meter or CT and configuration of electricity meter or CT address 8 Maximum incoming current 9 Three phase current balance ...

Page 48: ...46 23 In the Load balancing Setting the interface of main charger is shown in the upper figure in the right and the interface of the slave charger is shown in the lower figure ...

Page 49: ...gured Click the red column in the right picture to conduct the load balancing network configuration and you can select WiFi or Ethernet 26 In the Load Balancing Setting click the red column in the right picture you can make the selection connect the main charger to the electricity meter or CT through RS485 and configure the address of the electricity meter or CT and the address of the electricity ...

Page 50: ...der the administrator mode After clicking the charger icon in the setting interface for 5 times red column in the right figure enter into the administrator interface and the default password is 123456 After inputting the correct administrator password you can enter administrator mode and can read and configure the items which require administrator permission ...

Page 51: ...rator configuration items include common items they have been introduced in the part of user operation interface and fault record reading RFID card configuration remote upgrade device type configuration administrator password modification ...

Page 52: ...o view the fault record of the current charger Similar to the charging record you can view the fault record according to the quantity and total number of fault records stored in the current charger and click the Export button in the lower right corner to export the fault record file in Excel format ...

Page 53: ...king the Read Card Number button the RFID card shall be clung to the card swiping area AREA1 of the charger and the card number of the current charging card can be read and it can be copied and written into the white list of the card number of the charger if the card number is less than 16 digits it will prompt that the card number is incomplete and cannot be recorded The numbers of up to 40 charg...

Page 54: ... of the mobile phone and provide it for the charger and then send the URL of the upgrade pack to the charger FTP HTTP HTTPS are temporarily supported After the upgrade package is downloaded it will prompt that the upgrade request is successful and it starts the upgrade if the download fails or the URL is incorrect it will prompt that the request failed After the upgrade and restarting of the charg...

Page 55: ...ng socket version and CASE C charging cable version Abnormal range of CP 0 8 V and 1 0 V electronic lock authentication enabling under the case B connection mode Open state in the standby state or the charging finishes the charging plug and the charger continue to be locked and the charging plug cannot be pulled out from the charger Close state the electronic lock is automatically unlocked after c...

Page 56: ...mode click the Administrator Password Reset button to change the administrator password Similar to the modification of the user password the previous administrator password default is 123456 and the new administrator password shall be input and they shall not be same ...

Page 57: ...ntrolled and order management can be carried out such as charging authorization report etc The charger only supports OCPP1 6J protocol 9 1 Connection steps of OCPP 9 1 1 Connect the APP in the setting interface open the Operation Mode Setting and set the operation mode to OPEN status as shown in the following figure 9 1 2 In the setting interface open OCPP settings to set OCPP server address and C...

Page 58: ...er address format is as follows The example is as follows OCPP server address ws 13 200 14 12 58080 CPID 7121050066603101050600A03 For example CPID is the SN serial number of charging equipment it is for reference only ...

Page 59: ...s have different CPID values When connecting specific platforms you shall obtain the corresponding CPID value from the platform 9 1 3 Ensure that the charger can connect network 9 2 OCPP1 6J supports the following functions ...

Page 60: ...58 ...

Page 61: ...onnect the charging cable of the charger to electric vehicle Warning In CASE B charging mode the charger has charging socket the charging socket is equipped with electronic lock and the charging plug connected to the charger is automatically locked by the electronic lock during charging At this time please do not pull out the charging plug forcedly 10 1 Start stop charging through APP Please refer...

Page 62: ...ound and the charging session is finished At this time you can unplug the charger Warning When swiping the card to start charging if the buzzer generates the beep sound twice the interval is about 0 5s it means that the RFID card is not authorized 10 3 Start stop charging through platform The platform starts and stops the charging according to OCPP1 6J standard flows Before the platform issues the...

Page 63: ...61 ...

Page 64: ...remaining power of other loads load balancing see Chapter 12 Example for description single phase If the power provided by the power grid is 3 7 kW the charger can conduct charging with the charging power of 3 7 kW current 16A At this time if other loads in the same power grid use 2kW power the charger automatically adjusts the charging power according to the power management strategy and the char...

Page 65: ...ch and power failure 12 1 2 Detect three phases imbalance to prevent excessive load of power grid due to too large power of one phase 12 1 3 Household electricity use has priority 12 2 Wiring 12 2 1 Tools Screwdriver Electric or manual straight screwdriver and Phillips screwdriver Multimeter Cable stripper 12 2 2 Connecting the devices The charger Smart meter or current transformer clamp CT Clamp ...

Page 66: ...art meter signal wiring Three phase smart meter signal wiring Three phase smart meter and the charger are connected by RS485 communication lines and RS485 signal wiring of three phase smart meter is shown in the following figure ...

Page 67: ...al A The smart meter signal port 25 is RS485 signal B Single phase smart meter signal wiring Single phase meter and the charger are connected by RS485 communication lines and RS485 signal wiring of single phase meter is shown in the following figure ...

Page 68: ...66 The smart meter signal port 24 is RS485 signal A The smart meter signal port 25 is RS485 signal B 12 2 4 The current transformer clamp signal wiring is shown in the following figure ...

Page 69: ...ted by RS485 communication cable and the charger RS485 signal wiring is shown in the following figure The charger signal port 4 is RS485 signal A1 red arrow in above figure The charger signal port 5 is RS485 signal B blue arrow in above figure The charger signal RS485 signal A1 is added with 120Ω terminal resistance ...

Page 70: ... charger and current transformer the charger and current transformer are connected by RS485 communication cable the charger provides 12V power supply to current transformer and the charger signal line is shown in the following figure The charger signal port 4 is RS485 signal A1 red arrow in above figure The charger signal port 5 is RS485 signal B blue arrow in above figure The charger signal RS485...

Page 71: ...the red cable of current transformer The charger signal port 8 GND is connected with the black cable of current transformer If the grid system is single phase it can be connected with single phase electricity meter or one current transformer If the grid system is three phase it can be connected with smart electricity meter or three current transformers Examples of wiring between three phase electr...

Page 72: ...APP enter administrator mode open Load Balancing select Load Balancing Enable and set phase the master and solar working mode Make sure that the settings are consistent with the actual connection otherwise the load balancing may not work normally ...

Page 73: ...re the following information according to the actual master slave situation of the charger Phases Configure the phases of the power grid system where the single phase charger is located If it is connected to Phase A of the power grid configure this parameter as A Solar working mode According to the actual usage scenario configure the charging mode three charging modes can be configured FAST ECO an...

Page 74: ...ossible and when solar energy is insufficient the allowed maximum consumption of non solar current is a fixed value when the consumption exceeds the value charging is suspended ECO current under ECO mode maximum non solar current allowed for consumption Network settings Configure the network parameters of load balancing including WiFi and Ethernet two chargers are connected through WiFi or Etherne...

Page 75: ...hase current imbalance After opening adjust the three phase currents to make them balance when conditions permit make the imbalance rate is less than 15 12 4 Networking of Chargers 12 4 1 2 Chargers Networking Ethernet connection When conduct networking of 2 chargers using Ethernet cables you need to turn on the load balancing function on APP for both of them Set the master charger and slave charg...

Page 76: ...74 network cable and wait for 3min If the APP interface does not prompt the networking failure it means that networking of the 2 chargers is successfully ...

Page 77: ...sfully 12 4 3 Multiple chargers Networking When conduct networking of multiple chargers through WiFi or using network cable router must be equipped and in case of networking with network cable it can also be equipped with switchboard Turn on the load balancing function on APP for all of the chargers set master charger and slave charger modes 1 master and multiple slaves and in the load balancing i...

Page 78: ...76 Slave Slave Master Grid side Metering Device Grid Solar PV Solar side Metering Device Inverter AC energy storage battery Router Up to 32 units battery side Metering Device ...

Page 79: ...mobile APP and under the administrator mode enter the remote upgrade interface as shown in the following figure 13 1 2 Copy the URL link of the upgrade pack to the upgrade column for example copy the following upgrade link to the upgrade column ftp 10 0 10 149 updateA7 tar gz XATGOOD JLCPCS2 123456 6d46c881b347c212deb3c28686d4a7ad ...

Page 80: ...ce is as follows the red column is the upgrade column 13 1 3 Click Request Upgrade to request the upgrade and after the request is completed click Start Upgrade it will start the upgrade as shown in the figure below ...

Page 81: ...79 13 1 4 The interface of successful or failed upgrade is shown in the figure below ...

Page 82: ...ompted that the upgrade request is successful and it starts the upgrade if the download fails or the URL is wrong it will prompted that the request failed After the charger upgrade is completed and restarted the upgrade result will be fed back 13 2 Remote OCPP upgrade 13 2 1 Connect the charger to OCPP platform through Ethernet WiFi or 4G 13 2 2 Send the URL of the upgrade pack to the OCPP platfor...

Page 83: ...orking you need to install a SIM card on the charger The schematic diagram as follows After the SIM card is installed in place open the LINCHR APP select 4G 5G in the APP network configuration interface and configure the SIM card APN information as shown in the following figure ...

Page 84: ...n not using the 4G 5G networking open the charger maintenance bin and take the SIM card out When taking out the SIM card press the SIM card first and then take out the SIM card after the it pops up as shown in the following figure ...

Page 85: ...f plugging in will be recovered Three phase recovery logic when the voltage is lower than 450 3VAC the state of plugging in will be recovered Under Voltage Fault Single phase input voltage is lower than 154VAC 3VAC for 5 seconds Three phase input voltage is lower than 340VAC 3VAC for 5 seconds Single phase recovery logic if the voltage is higher than 164 3VAC the state of plugging in will be recov...

Page 86: ...ove 5 seconds After plug out re plug in to charge and check whether there is a fault If it does it means that the current limit cannot be limited by the vehicle It is recommended to set the current limit to the maximum 32A Relay Over Temperature The relay temperature is higher than the relay over temperature protection threshold 115 5 Stop charging and wait for the relay to cool down before chargi...

Page 87: ...c lock failure within 5s Start or stop charging 3 times in a row to see if the fault is eliminated if not return to the factory for repair Power Failure The charger is powered off during the charging process Restart the charger to eliminate failure Abnormal Failure of Charging Circuit The relay is not closed when the start charging is issued or the relay is suddenly disconnected during the chargin...

Page 88: ...and the master charger failed Check whether the IP of the slave charger and master charger are in the same network segment The Communication of the Smart Metering Device is abnormal The communication between the master charger and the grid side smart metering device fails Check whether the communication address settings of the smart metering device in the APP are consistent with the communication ...

Page 89: ...Frequency 2402 2480MHZ Output Power 1 8dBm RFID Frequency 13 56MHZ GSM LTE Frequency GSM 850 900 1800 1900 MHz LTE FDD B1 B3 B5 B7 B8 B20 B28 LTE TDD B38 B40 B41 Output Power GSM850 33 dBm EGSM900 33 dBm DCS1800 30 dBm PCS1900 30 dBm LTE FDD B1 B3 B5 B7 B8 B20 B28 23 dBm LTE TDD B38 B40 B41 23 dBm ...

Page 90: ...ny Name Xi an LINCHR New Energy Technology Co Ltd Company Address Room 309 Unit A No 6 Building Digital economy industrial park PuFeng Road Xi an Hi tech Industries Development Zone Xi an City Shaanxi P R China ...

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