banded,beaded,plain hot dipped galvanized,electric galvanized,bake galvanized,black heavy type,light type SZ is our brand. The "SZ" brand malleable iron pipe fittings are widely used in various pipelines to convey gas,water,oil and so on.Our products are of rich assortments:banded,beaded,and plain;galvanized and black;with ribs and without ribs;heavy and light...Material:malleable ironSize:1/4- ...