Plain Fire Bricks, Size 9" X 4.5" X 3", Grade-A (High Alumina, Min. 70% Al₂O₃), Service Temper Ature Min. 1500 Degree Celsius, Conforming To Is:2042-2006 Or Latest. [ Warranty Period: 6 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitted: Max 8 Lacs ] ]