Qingdao Kehua Petroleum Machinery Co., Ltd. mainly deals with mud pump fluid end expendables. Our company is professional in manufacturing mud pump chrome-plated liners, hardened steel liners and ceramic liners. We provide various types of valve bodies, valve seats, piston hubs, piston rods, extension rods, plates, snap rings and modules. With streamlined and efficient manufacturing processes and competent staff members, our company controls the production quality strictly according to API -7K ...