supply of constant contact polyurethane side bearer assemblyconstant contact polyurethane side bearer assembly,constant contact polyurethane side bearer assembly for casnub 22 nlb bogie (design b). drawing no.: rdsos approved firms drawing. material and specification: conforming to rdso,s s pec. no. wd-38misc.-2004, (rev.2) of nov. 2022 with marking details. remarks: marking as per rdso s letter no. mw/csnb/failure dated:04.06.2024. remarks: a) all metallic parts of pu side bearer i.e. t op and bottom housing and spacer set etc. shall be stamped/embossed on non-wearing surface in clearly legible 6 mm size letters. b) all pu components shall be marked by engraving/laser engraving/ embossing in 3 mm size in letter on non-wearing surface. [ warranty period: 30 months after the dat e of delivery ] ]