On the basis of production, a series of process indicate that the lifespan of flat is mainly determined by internal structure, tooth shape processing and the quality of heat treatment.
在生产实践的基础上，通过一系列工艺表明搓丝板的内部组织，齿形加工及热处理质量对其寿命起决定性作用。
On the basis of production, a series of process indicate that the lifespan of flat is mainly determined by internal structure, tooth shape processing and the quality of heat treatment.
在生产实践的基础上，通过一系列工艺表明搓丝板的内部组织，齿形加工及热处理质量对其寿命起决定性作用。
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