1)1.25 mm tk x 527 mm wide cold rolled carbon steel coil to material spec no. aa-10115 rev 09 ( is: 513 grade d ).tolerance on width is strictly within /-1 mm. the inner i/d of coil should be 470 mm to 515mm. material test certificates covering all the mechanical and chemical properties strictly as per specification shall be furnished along with supply. each coil weight should be 3 to 4.5 mt. qty: 1000 mt