... ,located in Zhongyuan oilfield, is one manufacturer of petroleum equipment in China. Our pump unit,sucker rod pump,casing ... Top Anchor, Mechanic Seating, Rod Pump 2) RHBM: Stationary Heavy Wall Barrel, Bottom Anchor, Mechanic Seating, Rod Pump 3) RHAC ... : Heavy Wall Barrel, Cup Seating, Tubing Pump7.Confirm sucker rod pump type:8.Detail specification of sucker rod pump: petroleum equipment machinery