blowout preventer of stuffing box type

preventer英语的解释,prevente... ... axial mixing preventer 轴向防混器 blowout preventer of stuffing box type 泥包式防喷器 ...

... ) packing diverter 盘根分流器 ) blowout preventer of stuffing box type 盘根盒式防喷器 ) split flow tray 分流式塔盘 ...