... BS5155 , ISO 5752Top flangeISO 5211 BodyDuctile iron,Stainless steel,WCBDiscDuctile iron,CF8,CF8M,C95400,C95500StemSS416,SS420,SS431,SS316SeatNBR,EPDMSuitale ... , gate valves and so on with the materials of ductile iron, carbon steel, stainless steel to order. Our products ... are designed and manufactured in accordance with the standards of ...