Steel Tubes Galvd. Isi Marked To Is: 1239/Pt-1/2004 (Reaffirmed 2014) In Random Lengths Of 4-7 Mtrs. Screwed At Both Ends As Per Is:554:1999 (Reaffirmed 2019) Socketed A T One End & Other End Protected With Plastic Protector Nominal Bore 25 Mm Heavy Clas Ses. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]