There are lots of advantages by cold extrusion for straight knurl nut in a single process.
纹滚花
用冷挤压一次
形新工艺 ,
著。
There are lots of advantages by cold extrusion for straight knurl nut in a single process.
纹滚花用冷挤压一次形新工艺 ,著。
Abstract： There are lots of advantages by cold extrusion for straight knurl nut in a single process.
摘 要： 纹滚花用冷挤压一次形新工艺，著。
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