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中碳鋼平華司





































































規格
換算
對邊
×厚度
1/2''
12.70
27
×2.5
5/8''
15.875
33
×3
3/4''
19.05
37
×3.5
7/8''
22.225
44
×3.5
1''
25.40
50
×4
1-1/8''
28.575
57
×4
1-1/4''
31.75
63
×4
1-3/8''
34.925
 
 
1-1/2''
38.10
76
×4
2''
50.80
 
 

48 鐵螺絲螺帽