Supply Of Galvanised Mild Steel Tubes Electrical R Galvanised Mild Steel Tubes Electrical Resistance Weldederw/high Frequency Induction Welded Hfiw/hot Finished Weldedhfw Conforming To Is.1239part-1/1990 Fifth Rev With Amdt No 1 To 5 Screwed At Both Ends As Per Is.554/1985 Socketed At One End And Other End Protected With Plastic Thread Protector.the Socket Conforming To Is.1239part-ii/1992 Fourth Rev With Amdt No.1 In Random Length Of 4 To 7 Mtrs. G.i Pipe Shall Be Duly Isi Marked As Per Statutory Requirement Nominal Bore Dia Is 40mm Medium Grade. Is 1239-68 Part I..