Laizhou Dongsheng Valve Co., Ltd. is a professional valve plant, is a collection of research and development, design, the manufacture, the sale of integrated specialized company since 2002. We hold a set of scientific and strict management system, strong technical force, advanced processing equipment and reasonable technical progress, high technology and quality technicians and workers. Our factory area is 30,000 square meter and have 148 employees. After 20 years of focus, we have developed into a world-renowned check valve production base, and our products are exported to Europe, America, Africa, Southeast Asia, Australia and other more than 70 countries and regions.