... and finished 3.7years experience export to Europe Sanitary Butterfly Valve:Our DIN Butterfly valve body could be offered with Weld end, ... widely using. The Butterfly valve body and disk are all made from full CNC machined, high grade level polish.All of ... grade: 304, 316L Size range: DN28, DN34, DN40, DN50, DN70, DN85, DN104 Seal(Gasket):EPDM, SILICON, VITON NameSMS threaded sanitary butterfly ...