Red Clay To Specification (A) Red Clay Should Contained 30% - 50% Of Clay (B) A F A Gra In Finness Number Should Be Between 60-80. (C) Red Clay Should Be Free From Greanels, Grit And Lime Soda And Magnesium Salts. [ Warranty Period: 30 Months After The Date Of Delivery ] [Quantity Tolerance (+/-): 5 %Age , Item Category : Normal , Total Po Value Variation Permitt Ed: Max 8 Lacs ] ]