Tender For supply of top side bearer liner to rdso drg. no. wd-80007-s-08, alt.no.8. item no.-4 and mater ial conforming to is 3885 part-1:1992, reaffirmed-2022. grade- 4, hardness-380 to 420 bhn [ warra nty period: 30 months after the date of delivery ]