We, Qingdao Hongbo Petroleum Machinery Co., Ltd. are a manufacturer of expendables of mud pump in oil drilling fields. We hope we can have a sincere cooperation with your good company as a supplier of your good company and your good company acts as our distributor. We are sure that our products with high quality & competitive prices will lead your company to having a large margin in future bids & lowering your costs very much. Please read our company profile as following: Qingdao Hongbo Petroleum Machinery Co., Ltd. (HB) specializes in manufacturing and developingmud pump fluid end expendables for customers worldwide. HB&＃039;s products have equivalent qualitywith those of OEM and are produced for direct replacement for brand mud pumps including but not limited to Emsco, Gardner-Denver, National, Oilwell, Ideco, Skytop/Brewster, OPI, Wirth, Wilson, and Gaso. With a large range of specifications, HB&＃039;s high quality products have successfully proven themselves under various drilling conditions such as extreme pressure, high temperature and corrosive environments, andhave been accepted domestically and internationally. As one of HB&＃039;s business principals, we treat product quality as our first priority. Our employees are well trained and have more than ten years of experience in manufacturing fluid-end fittings for mud pumps. We control the product quality by strictly follow the standard of API-7K. HB&＃039;s established Quality Control System and experienced expertise ensurethe best product quality and service. To meet the needs of our customers, HB dedicates its precious resources to research and development. HB&＃039;s products include the following: Hy-chrome Mud Pump Liner; Chrome-plated Liner (For warter well drilling); Hardened Steel Liner (For water well drilling); 3/4-web Valve and Seat; Full-open Valve and Seat; Long-life Bonded Piston with Rubbers and Fabric;Long-life Bonded Piston with Urethane; Replacement Piston; Piston Hub; Piston Rod; Fluid ends; Ceramic liners; ETC.