... 3.standard:BS5163, BS5150,DIN3352 F4/F5,A gate valve 1.Material:ductile iron GGG500/7 2.coating:fusion bonded epoxy coated ... type, push-on type, mechanical joint type, plain ends type4) Material: a) Body : Ductile Iron GGG500-7 b) Wedge : D/I ... .We are one of the leading manufacturers of ductile iron pipe fittings, flanged adaptors, couplings, valves, manhole covers, dismantling joints, rubber ...