The improvement of structure and manufacturing process was done in the aspect of low service life of blanking dies of brake block steel-back.

 
  • 本文針對汽車(chē)剎車(chē)片鋼背落料凹模使用壽命低的問(wèn)題,對模具的結構和制造工藝進(jìn)行了改進(jìn)。
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