Supply Of 15 Mm Normal Bore M.s. Heavy Duty Seamle 15 Mm Normal Bore M.s. Heavy Duty Seamless Pipe Conforming To Is : 1239 Part I Of 1992 . The Pipe Along With Joints Should Be Painted From Outside With One Coat Of Red Oxide Zinc Chrome To Is:2074/1992inspection By Rites. Mtr.