Supply Of Non - Asbestos L Type Composite Brake Block For Freight Stock To Rdsos Drg. No.wd-9 9062-s-01 Alt. 4 Or Latest And Rdsos Spec. No. Wd-13-abr-2019 . Warranty Period: 18 Months Aft Er The Date Of Delivery Quantity Tolerance +/-: 5 %age, Item Category : Normal, Total Po Value Variation Permitt Ed: Max 8 Lacs