8 mm dia X 2500mm- 4500mm LG, Bright Steel Round Bar to BHEL Spec. AA10112 Rev07 ( 12100 kg ). Supplies quantity is to be restricted between 12100 kg & 9900 kg. 12mm dia X 2500mm- 4500mm LG, Bright Steel Round Bar to BHEL Spec. AA10112 Rev07 ( 2200 kg ). Supplies quantity is to be restricted between 2200 kg & 1800 kg.