材质 
Φ30
29.935
29.805
6.52
6.3
3
8
Φ36
35.92
35.76
8.22
8
4
10
Φ40
39.92
39.76
8.22
8
4
10
Φ45
44.92
44.76
8.22
8
4
10
Φ50
49.92
49.76
10.22
10
4
12
Φ60
59.9
59.71
10.22
10
5
12
Φ70
69.9
69.71
10.22
10
5
13
Φ80
79.9
79.71
12.27
12
5
15
Φ90
89.88
89.66
12.27
12
6
15
Φ100
99.88
99.66
12.27
12
6
15