Size
符号
HI
HJ
HK
HL
HM
节宽
b
23.6
29.6
35.5
41.4
47.3
顶宽
25.4
31.8
38.1
44.5
50.8
高度
h
12.7
15.1
17.5
19.8
22.2
节线以上高度
B
3.8
4.7
5.7
6.6
7.6
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