Profile: Wenzhou Zhouyi Valve Factory specializes in manufacturing stainless & carbon steel valves, flanges and pipe fittings. We are an ISO 9001:2000 certified company. Our ball valve products include stainless steel inner threaded, one piece & three piece flanges, ANSI float, butt weld, and two piece ball valves. We offer GB series valves such as GB gate, globe, lift check, vertical check, float ball, swing check and tee ball valves. Our flange products include ANSI welding neck, HG butt welding neck and HG welding neck flanges. These products are made up of various materials such as 301, 304, 304L, 316, 316L and WCB. Our products are widely applied in petroleum, chemical, papermaking, power electricity, pharmacy and food industries. We also export our products to various countries worldwide.