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About us

      Liaocheng Guotai Machinery Co.,Ltd is located in Liaocheng City,Shandong Province,China. It is a professional manufacturer of petroleum machinery and its spare parts. Our main products are: Drilling Mud Pumps, Liners, Pistons, Valves &Valve Seats, Piston Rods, Extension Rods, Modules and other Mud Pump Accessories.     The products of our factory are strictly manufactured according to API-7K Standard, and got the ISO9001-2000 international quality system very early. Our products are sold very well to Shengli Oilfield, Daqing Oilfield, Zhongyuan Oilfiel