... ISO, DIN,SMS etc Sanitary Stainless Steel Butterfly Clamped Valve Features:1) Sanitary stainless steel butterfly valve2) Material quality: SS304, SS304L, SS316, ... and ball valve, flange ball valve (specializein wine tank), 1pc with internal threaded ball valve, 2pcs with internalthreaded ... We value the good relationships with customers. high quality stainless steel lifting ball butterfly valves