Non -Asbestos 'L' - Type Composite Brake Block For Freight Stock. Drawing - Rdso'S Drawin G No: Wd. 99062-S-01, Alt-4, With Latest Alteration. Mat. Spec. - As Per Drawing With Latest Revision And A Mendments And Conforming To Rdso'S Specification No.: Wd - 13-Abr-2019, With Latest Revision And Ame Ndments [ Warranty Period: 18 Months After The Date Of Delivery ] ]