Wear Plate Liner For Yoke Pin Support Plate As Per As Per Drawing No. Wa/Bd-4462 Item No. Part-A Alt. 8 & Specification No.-Wd-70 Bd-10 Rev.-4. Is:3885 Part-1 Grade Iv. (Hardness 262-302 Bhn). [ Warranty Period: 72 Months After The Date Of Delivery ] ]