supply of liner 50 x 10 x 3 mm for bolster rotation.liner 50 x 10 x 3 mm for bolster rotation.,liner 50 x 10 x 3 mm for bolster rotation stop lug . drawing no : fig. 40, para 5.4.2 of g - 95 (rev.1)with amendment no. 5 . mat. & spec : (1) wd-21-casnub-22nlb-bogie-93, rev. 2 with amend. no. 6 .(2) is : 3885,part 1, gr.-iv, hardness 380 - 420 bhn n.b.:- 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. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] => limited