tender for 25nb heavy duty seamless pipe, black, length 6 mtrs. to is:1239/(part-i):2004table 5 and plain ends.outside diameter (minimum 33.3mm. and maximum 34.2mm),wallthickness-4mm. nominal mass of steel tubes (plain end)-2.930 kg/mtr +10. conditions:-totally rust free from inside & outside,fitted with protective cap at open ends.
