The bypass reduced pressure assembly shall have a single bolted on cover and top mounted test cocks.

 
  • 旁路減壓區總成在閥蓋上應該有一個(gè)螺栓和頂部安裝測試旋塞。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan