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When the projector is working, the screw is one of its important parts, and all ...
The pre-tightening force of the threaded fastener connection is to make the thre...
Fasteners are a type of mechanical parts that are used for fastening connections...
The wheel connection pair is an extremely important component in vehicle applica...
The connection of threaded fasteners is widely used, and the problem that gives ...
Large block or network carbides appear in the carburized layerThe cause of the d...
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