材质 
M24
3
28.7
30
49
50
65
M30
3.5
36.4
38
58.8
60
80
M36
4
43.4
45
68.8
70
92
M42
4.5
51.1
53
78.8
80
105
M48
5
58.1
60
88.8
90
118
M56
5.5
68.1
70
98.8
100
132
M64
6
78.1
80
108.8
110
145
M72
6
87.8
90
118.8
120
160
M80
6
97.8
100
128.8
130
170
M90
6
109.8
112
143.8
145
190
M100
6
122.5
125
163.8
165
220