材质 
8x5
8
7.964
5
4.925
0.4
0.25
0.4
0.25
8
10x6
10
9.964
6
5.925
0.6
0.4
0.6
0.4
10
12x6
12
11.957
6
5.925
0.6
0.4
0.6
0.4
10
14x6
14
13.957
6
5.925
0.6
0.4
0.6
0.4
10
16x7
16
15.957
7
6.91
0.6
0.4
0.6
0.4
11
18x7
18
17.957
7
6.91
0.8
0.6
0.8
0.6
11
20x8
20
19.948
8
7.91
0.8
0.6
0.8
0.6
12
22x9
22
21.948
9
8.91
0.8
0.6
0.8
0.6
14
25x9
25
24.948
9
8.91
0.8
0.6
0.8
0.6
14
28x10
28
27.948
10
9.91
0.8
0.6
0.8
0.6
16
32x11
32
31.938
11
10.89
0.8
0.6
0.8
0.6
18
36x12
36
35.938
12
11.89
1.2
1
1.2
1
20
40x14
40
39.938
14
13.89
1.2
1
1.2
1
22
45x16
45
44.938
16
15.89
1.2
1
1.2
1
25
50x18
50
49.938
18
17.89
1.2
1
1.2
1
28