1)Ductile Iron Grooved Fittings. 2)Finish:Paint ,Epoxy Powder and Darcromet 3)Size:1 ... protection on commercial ,civil and municipal constructions like water supplying ,gas supplying, heat supplying,etc2)Industrial pipeline system on shipping ,mine ... system on subway station ,railway station ,airport, seaport,bridge,etc Pipe Fittings FM & UL Ductile Iron Elbow LEDE Original Manufacturer