Samples of Some Burred Perforation Standard Size
No.
A
B
Centers
H
T
1
6 mm.
13.8 mm.
20 mm.
2~3 mm.
1.0~1.2 mm.
2
9 mm.
25 mm.
any
2~3 mm.
0.8~1.0 mm.
3
10.8 mm.
16 mm.
24 mm.
2~3 mm.
0.8~1.0 mm.
4
13 mm.
18 mm.
25 mm.
2~3 mm.
2.3~3.2 mm.
5
13 mm.
20 mm.
25 mm.
2~3 mm.
1.6~2.0 mm.



t=2.0 H=1.5



t=0.8 H=0.8



t=1.0 H=1.3



t=1.2 H=2.4


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