Zhejiang Shengdelong Valve Co., Ltd. is a China leading Valve Manufacturer & Supplier & Exporter. According to API, ASME, ANSI, DIN, BS, JIS standards Production Gate Valve, Ball Valve, Check Valve, Butterfly Valve, Globe Valve, Plug Valve, and specialized in researching and producing various non-standard valves. Having made great achievements, We will never stop our steps for improvements. Our personnel warmly welcome clients both at home and abroad to negotiate with us for business relationships.