材质 
ST2.2
0.8
0.8
4.3
4
1.3
0.66
0.8
0.4
0.6
ST2.9
1.1
1.1
5.5
5.2
1.7
0.86
1
0.5
0.75
ST3.5
1.3
1.3
6.8
6.44
2.1
1.06
1.2
0.6
0.95
ST3.9
1.3
1.3
7.5
7.14
2.3
1.06
1.2
0.7
1.05
ST4.2
1.4
1.4
8.1
7.74
2.5
1.26
1.51
0.75
1.15
ST4.8
1.6
1.6
9.5
9.14
3
1.26
1.51
0.85
1.35
ST5.5
1.8
1.8
10.8
10.37
3.4
1.66
1.91
1
1.5
ST6.3
1.8
1.8
12.4
11.97
3.8
1.66
1.91
1.2
1.75