Type:waferFace to face :API 609, BS5155, DIN 3202, ISO5752Flange : AS2129 Table E/D Mounting flande:ISO52111. Body material :cast Iron, Ductile iron, carbon steel, stainless steel 2. Seat material :NBR, EPDM, Viton, Neoprene,Hypalon, Silicon3 Shaft : Stainless steel 416,316 .3044. Disc:cast Iron, D......