supply of side frame column inside linerside frame column inside liner,side frame column inside liner of size (100 x 80 x 2.5 mm) as per drawing no. j hs/sk-2441,s.no.3 . material is silico-manganese steel to is-3885, pt-1 (reaffirmed-2022), g r-iv. (note : as per rdso letter no. mw/plng/csnb/vendor dated- 10/11/2023 (i) all silico- mangan ese liners shall be marked for manufactu rer initial and month and the year of manufacturing by metal laser engraving in 6 mm size and 0.1 mm minimum.(ii) liners shall be fitted in such a way that markin g lies on opposite to wearing surface.) [ 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 ] ] => limited