... of rich assortments:banded,beaded,and plain;galvanized and black;with ribs and without ribs;heavy and light...Material:malleable ironSize ... -6inchSurface:Hot dipped galvanized,electric dipped galvanized,bake galvanized,black;with ribs and without ribs.Standard:BS standard,DIN standard,American ... :2008FrankHebei Wanda Malleable Iron Corp.,Ltd Galvanized Iron pipe fitting tee with rib