Tianjin Leading valvemanufacture Co.,Ltd. The company founded in 2001, specializes in designing manufacturing and marketing of various butterfly valves, check valves in North of China. The company covering 20000square meters owns modernized factory buildings, production and testing equipments and strong engineering capability. Our company has the capability of casting, machining, rubber products and work piece surface treatment. The rubber products have passed England Certificate of WRC-NSF. And Spray coating technology is up to the international standard.