... Iron 2.Size:1/8"- 6" 3.Usage: Widely used in various pipelines to convey gas,water,and oil. ... Hot Dipped Galvanized Malleable Iron Pipe Fitting used plumbing materials :1.standard: EN10242,ISO7-1 ,NPT 2 ... .banded , beaded 3. hot deep galv, bake galv, black 4.TUV,UL5. Brand: O Product ... oil, air Hot Dipped Galvanized Malleable Iron Pipe Fitting used plumbing materials