材质 
ST2.9
1.1
5
2.6
0.5
6.5
6.25
ST3.5
1.3
5.5
2.6
0.6
8.3
6.8
ST4.2
1.4
7
3.1
0.9
8.8
8.7
ST4.8
1.6
8
3.25
0.9
10.5
9.3
ST5.5
1.8
8
4.15
1
11
11
ST6.3
1.8
10
5.15
1
13.2
12