Profile: Rongsheng Machinery Manufacture Ltd. is a manufacturer of petroleum machinery. Our products include land BOPs & well control equipment, offshore platforms & offshore well control equipment, mud pumps & pumping units, slant rig's manufacturing & engineering services, high pressure wellhead equipment, snubbing unit, choke & kill manifolds, pumping units and tubing. The BOP control system is an important equipment for controlling the bop and hydraulic gate valve. lt is an indispensable device in drilling and well workover treatment.