Tenders for Supply of Non-Asbestos Based K Type High Friction Composite Brake Block For Bmbc. Drawing No. : Rdsos Drg. No. Sketch - 98066, Alt. 6. Material And Specification : Rdsos Str No. C-9809 Rev. 4 / May 2009 With Amend. 1 / Sept. 2016. Warranty Period: 18 Months After The Date Of Delivery