Hejian City Jizhong PetroMachinery Co.,Ltd is one of the best piston pump manufacturer in China, also the big manufacturer of pumping units parts. Established in 2000, Our products brand is "DaHai" which is very famous in China. The designer, engineer and staff are about 100 persons. Every year, we supplied over 100,000 sets pumps at home and abroad. Our products are mainly used in petro-chemical industry, oilfield construction, mineral construction etc. All of our pumps have been certificated and we have received ISO9001 certificate. We also have the professional testing facility...