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The threaded rod diameter refers to the diameter of the external thread processi...
Single thread thread has a small helix angle (not easy to slide), and the fricti...
There are more than 100 national standards for the classification of screws and ...
Screws and bolts have clear professional terms, have a clear distinction, and sh...
The threaded rod diameter refers to the diameter of the external threaded surfac...
It is generally required to be flexible in transmission and allow a certain amou...
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