G.I.Mild Steel Tubes (Erw) Isi Marked Size 25 Mm Nominal Bore Medium Grade C Onforming To Is:1239 ( Part-1)/2004(6Th Revision) Amdt. No.4 Of June 2010 In Random Lengt H Of 4 To 7 Metrs Screwed On Both Ends As Per Is:554 / 1999.Socketed At One End Confor Ming To Is:1239 ( Part-Ii) / 2011(5Th Revision) With Amdt. No.1 Of Sep . 2012. And Other End P Rotected With Plastic Protector. (411.50Mtrs. = 1 M.Ton). [ Warranty Period: 30 Months Aft Er The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]