Product Type: Check Valve Product Name:3PC CQ Thread Ball Valves Product Details: Place of Origin: China Certification: ISO9001-CE ... (1). 3PC Standard Bore 1000WOG & 2000WOG Stainless Steel Threaded end Ball valve (2). size:1/4″-4" 3). Material: WCB, 304, 316 ... ) 11). Certificate: API, CE, TS, ISO, AZ http://www.fagong-valve.com/