The welder shall be capable of welding (full hard cold-rolled) steel with yield strength of up to 85Kg/mm2.

 
  • 焊機應能焊(冷軋全硬)其屈服強度大于85Kg/mm2的鋼帶。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan