... , Reducer, Coupling, Elbow, Tee, Cross, Ductile Iron Grooved Fittings With ASTM A536 standard, Including Coupling, Adaptor, Bend, Reducer, Coupling, Elbow, Tee, Cross ... price with FM and UL approved.Material: Ductile iron in ASTM A536 standardSize: from 1inch to 24inchPainting: Epoxy, Galvanization ,Electroplate and ...