Gem Bids For Supply, 20 Mm Medium Galvanized Steel Tube And End Screwed Withone End Sockets, Tubulars As Per Is 1239, 25 Mm Mediumgalvanized Steel Tube And End Screwed With One Endsockets, Tubulars As Per Is 1239, 32 Mm Mediumgalvanized Steel Tube And End Screwed With One Endsockets, Tubulars As Per Is 1239, 40 Mm Mediumgalvanized Steel Tube And End Screwed With One Endsockets, Tubulars As Per Is 1239, 50 Mm Mediumgalvanized Steel Tube And End Screwed With One Endsockets, Tubulars As Per Is 1239