... 4,Material:Malleable Iron ISO,SGS Elbow malleable iron pipe fitting Product ItemElbows Reducing malleable iron pipe fittingSize1/2"-4"Thread StandardBSFinishBlack ... , sockets , backnuts , flanges ,unions ,nipples bushings , Specifications 1.Product: malleable iron pipe fitting 2.Standard: BS,NPT,DIN 3.Origin: Hebei,China ... Fax: +86-314-2527667 ISO,SGS Elbow malleable iron pipe fitting