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United States Standard thread (Sellers screw thread) | |||
United States standard screw thread | |||
American Standard Thread | |||
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United States standard-thread |
美 国 标准螺纹 : 27 phrases in 8 subjects |
Automobiles | 3 |
Aviation | 1 |
Drilling | 2 |
General | 10 |
Mechanic engineering | 5 |
Mechanics | 2 |
Metallurgy | 2 |
Technology | 2 |