Galvanised Mild Steel Tubes Electrical Resistance Welded(Erw)/High Frequency Induction Welded (Hfiw)/Hot Finished Welde D(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 An D Other End Protected With Plastic Thread Protector.The Socket Conforming To Is.1239(Part-Ii)/1992 (Fourth Rev) With Amdt No.1 In Rand Om 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. [ Warranty Period: 30 Months After The Date Of Delivery ] ]