Chinese translation for "双油封"

double oil seal

Similar Words：

"双优先" Chinese translation, "双优先式" Chinese translation, "双邮裁" Chinese translation, "双油层同心完井" Chinese translation, "双油层油井" Chinese translation, "双油管采油井口装置" Chinese translation, "双油管井封隔器" Chinese translation, "双油管完井" Chinese translation, "双油管柱" Chinese translation, "双油路喷咀" Chinese translation