The microstrueture of coat was compaction, and any metallurgical defects, such as porosity, slag inclusion and so on, were not found.

 
  • 重熔層組織致密,未發(fā)現未熔合及夾渣等冶金缺陷。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan