... pipe fitting material :malleable iron, gray iron and ductile iron pipe fitting size:1/8"-6" malleable Iron Castingsmalleable iron cast fitting Size:1/ ... Galvanized,Hot Dipped Galvanized,all be antirust treament..malleable iron cast fitting products are divided into elbow,tee,nipple, ... socket,union,cross,cross over,flange,round cap and so on.Widely used in connecting various pipelines which convey gas, ...