We, Qingdao Hongbo Petroleum Machinery Co., Ltd. are a manufacturer of expendables mud pump in oil drilling fields. We hope we can have sincere cooperation with your good company as supplier and acts our distributor. sure that products high quality & competitive prices will lead to having large ...

Tianjin huachang xingye technology co.,ltd was established in 1999 .through many years cooperation with some research institutions , our company has been possessed the ability of production service.our invested two factory bazhou city hebei province ,dongying shandong successively,so ...