Malleable iron pipe fittings Material: malleable iron Standard: Din, American, British Size: 1/2-6 Surface: black, G.i . Typeelbow, tee, reducer, cap, sockets , backnuts , flanges ,unions ... .Yutong steel pipe co.,ltdI hope can get your information as soon as possiable.Yours faithfully,Mr. tony song Galvanized malleable iron pipe fittings