Tianjin Dongrui Petroleum Machinery Co.,Ltd Supply Petroleum machinery and Spare parts, drilling rig and spare (top drive, wheel, hook, traveling block, winch), the blowout preventer and spare （rongsheng BOP， shenkai BOP spare,Cameron BOP spare,shaffer BOP spare,hydril BOP spare）, choke manifold and kill line and , valve, throttle pressure well mud circulating system, sand pump, mud mixer, mud centrifuge, the bop control unit(dongsu and BPM spare), flange, drilling spool, DSA, adapter spool, mud pump, Drill bits, drilling  pipe， top drive spare (VARCO, CANrig, BPM,TPEC),  oil pumping units and spare.