50
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•
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•
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A
.UaW^g]
B
.UaW^g]
C
6
4
M
FI
230
400
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$Ha4WZf
!acf[dg^dghW`bIYbg^df
>
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Ze`I\gZehSe[dgc`bfhXEV
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25
24
26
27
12
a
= 40 – 50 mm (1.6 – 2.0 inch)
b
= 1 – 2 mm (0.04 – 0.08 inch)
a
b