材质 
Φ1
1.008
1.002
0.2
Φ1.5
1.508
1.502
0.3
Φ2
2.008
2.002
0.35
Φ2.5
2.508
2.502
0.4
Φ3
3.008
3.002
0.5
Φ4
4.012
4.004
0.63
Φ5
5.012
5.004
0.8
Φ6
6.012
6.004
1.2
Φ8
8.015
8.006
1.6
Φ10
10.015
10.006
2
Φ12
12.018
12.007
2.5
Φ16
16.018
16.007
3
Φ20
20.021
20.008
3.5