The skelp tested shall be in its final condition, ready for pipe forming, when the test coupons are removed.

 
  • 用于管道成型的管制鋼板試驗應在其最終狀態(tài),試樣被移除時(shí)進(jìn)行。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan