常用尺寸换算表
1寸 1 X 1.5 2.54 X 3.81
2寸 1.5 X 2 3.81 X 5.08
3寸 2.5 X 3.5 6.35 X 8.89
3R 5寸 3.5 X 5 8.89 X 12.7
4R 6寸 4 X 6 10.16 X 15.24
5R 7寸 5 X 7 12.7 X 17.78
6R 8寸 6 X 8 15.24 X 20.32
8R 10寸(B) 8 X 10 20.32 X 25.4
8R' 12寸(A) 8 X 12 20.32 X 30.48
10R 12寸(B) 10 X 12 25.4 X 30.48
12R 16寸 12 X 16 30.48 X 40.64
14R 18寸 14 X 18 35.56 X 45.72
16R 20寸 16 X 20 40.64 X 50.8
18R 24寸(A) 18 X 24 45.72 X 60.96
20R 24寸(B) 20 X 24 50.8 X 60.96
20R' 30寸(A) 20 X 30 50.8 X 76.2
24R 30寸(B) 24 X 30 60.96 X 76.2
24R' 36寸(A) 24 X 36 60.96 X 91.44
30R 36寸(B) 30 X 36 76.2 X 91.44
30R' 40寸 30 X 40 76.2 X 101.6
40R' 60寸 40 X 60 101.6 X 152.4
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