Supply Petroleum machinery and Spare parts, drilling rig and spare (top drive, wheel, hook, traveling block, winch), the blowout preventer and spare, choke manifold and kill line and valve, throttle pressure well mud circulating system, sand pump, mud mixer, mud centrifuge, the bop control unit, flange, drilling spool, DSA, adapter spool, mud pump, Drill bits, drilling  pipe, top drive spare ,  oil pumping units and spare.