材质 
ST2.9
1.1
5
4.82
5.4
2.3
2
2.56
2.46
9
8.64
0.9
1.1
ST3.5
1.3
5.5
5.32
5.96
2.6
2.3
3.12
3
11
10.57
0.9
1.1
ST4.2
1.4
7
6.78
7.59
3
2.6
3.67
3.55
12
11.57
0.9
1.1
ST4.8
1.6
8
7.78
8.71
3.8
3.3
4.12
4
15
14.57
1.4
1.8
ST5.5
1.8
8
7.78
8.71
4.1
3.6
4.82
4.7
15
14.57
1.4
1.8
ST6.3
1.8
10
9.78
10.95
4.7
4.1
5.52
5.4
18
17.57
1.4
1.8
ST8
2.1
13
12.73
14.26
6
5.2
7.27
7.15
21
20.48
1.8
2.2