Side Frame Friction Liner. Drawing No. :- Sk-69594, Alt. 38, Item No. 7. Spec. No: Wd-21 -Casnub-22 Nlb Bogie- 93, Rev. 2 With Amend. 6. Liner Shall Be Marked For Manufacturer Initial And Month & Year Of Manufacturing By Metal Laser Engraving In 6Mm Size And 0.1 Mm Depth Minimum. (A S Per Rdso Letter No. Mw/Plng/Csnb/Vendor Dt. 10.11.23). [ Warranty Period: 30 Months After The D Ate Of Delivery ] [ 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 ] ]