TIANZHENG.Founded in 1985, TIANZHENG is located in Oubei City New District, Yongjia, Wenzhou (the hometown of pumps and valves in China), and specializes in the research, development and manufacture of safety valves. The company is equipped with CNC machine tools, heat treatment equipment and full performance test equipment and other advanced production and testing facilities, products are widely used in power station boilers, petrochemical industry, energy and environmental protection and other fields, exported to Southeast Asia, the Middle East, Africa and Australia market. The main products cover spring micro-opening, full-opening, high-temperature and high-pressure safety valve series, including A21H, A42Y, WA42Y and other models, to meet the diversified needs of industry.