The microstructure of the weld bonds is a combination of martensite, lower bainite and retained austenite.

 
  • 焊接熔合區組織為馬氏體+下貝氏體+殘余奧氏體;
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan