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* 本产品在整个生产过程中严格控制，使其达到高品质、高稳定的标准，但外部的强电气干扰，仍可
能对本产品造成影响或损害，因此操作场所的接地系统一定要切实做好，并建议用户安装故障安全防
护装置（如漏电保护器） 。
Strict control in the producing process ensures the high quality and stability of this kind
of products, but exterior strong electronic interference can affect or damage the products,
so ground wire system in working place must be effectively guaranteed, especially proposed
malfunction protection equipment(such as electricity-leaking protection device).
From the library of: Superior Sewing Machine & Supply LLC