SRP Surface API 11E Downhole Rod Pump Pumping Units API 11E pumping units description: The API pumping unit is one kind of convention beam pumping unit,which selects the crank balanced method.It is ...더 보기
방문자의 메시지메시지를 남기세요
아직 공개된 의견은 없습니다.
SRP Surface API 11E Downhole Rod Pump Pumping Units