Galvanised Mild Steel Tubes Electrical Resistance Welded (Erw)/High Frequency Induction Welded (Hfiw)/Hot Finished Welded (Hfw) Conforming To Is.1239 (Part 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.1239(Part-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