Supply of Overhauling Kit For Air Flow Relay Valve R6 To Kb Part No. Ii83410 Assembly For Knorr B Remse Air Brake Triplate Panel Of Wag-7 Locos. As Per Annexure Enclosed. Warranty Period: 30 M Onths After The Date Of Delivery Quantity Tolerance +/-: 5 %Age, Item Category : Normal, Total Po Value Variation Permitt Ed: Max 8 Lacs