Co2 Gas For Welding To Is 307/66 (Reaffirmed In 1996) Grade I Having Purity 99.7% Min. Co2 By Volume In Firms Returnable Cylinder. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]