There are two reprocessed technologies after plasma arc quenching,they are lapped finishing and chemical running-in.

 
  • 等離子弧淬火后處理工藝主要采用研磨和化學(xué)跑合2種方法。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan