Title: Tangshan Hongyuan Valve Industry Co., Ltd. Description: is one of the leading valve manufacturers in China. We have been an ISO9001:2000 certified company engaged in this business since 1997. We supply butterfly valves, flanges and pipe fittings with the best quality and the most competitive prices. Tags: Pipe Fittings Flanges Butterfly Valves Category: Tangshan URL: http://www.hyvp.com