Tube Steel Seamless Heavy Grade Nominal Bore 15Mm Black Plain Ends To Is: 1239/Pt-I/2004. Amendment No.4 June' 2010 ( Pertains To Mild Steel) Table 5 And Plain Ends. Outside Diameter ( Minimum 21 Mm And Maximum 21.8 Mm) Wall Thickness 3.20 Mm, Nominal Mass Of Steel Tubes ( Plain End) 1.44 Kg/Mtr+ 10%. Lenght 06 Mtrs. Material Should Be He Avy Duty Seamless Pipe, Black. Conditions: Totally Rust Free From Inside & Outside, Fitte D With Protective Cap At Open Ends. [ 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 ] ]