20#???????|20#С??????????|?????????
??????????? ??????????? ?????????
6*0.5-1-1.5-2
8*0.5-1-1.5-2-2.5-3
10*0.5-1-1.5-2-2.5-3
12*1-1.5-2-2.5-3
14*1-1.5-2-2.5-3*3.5*4
16*1-1.5-2-2.5-3*3.5*4
18*1-1.5-2-2.5-3*3.5*4
20*2-2.5-3-3.5-4-4.5-5
22*2-2.5-3-3.5-4-4.5-5
25*2-2.5-3-3.5-4-4.5-5-6
27*2-2.5-3-3.5-4-4.5-5-6
30*2-2.5-3-3.5-4-4.5-5-6
32*2-2.5-3-3.5-4-4.5-5-6-7-8
35*3-3.5-4-4.5-5-6-7-8
38*3-3.5-4-4.5-5-6-7-8
40*3-3.5-4-4.5-5-6-7-10
42*3-3.5-4-4.5-5-6-7-8-10
45*3-3.5-4-4.5-5-6-7-8-10
51*3-3.5-4-4.5-5-6-7-8-10-12
57*3-3.5-4-4.5-5-6-7-8-10-12-14-16
????????????GB/T8162-2008
??????????????GB/T8163-2008
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