tender for manufacture and supply of 60 kg metal liner for use with erc mk-v on 25t wider psc sleeper[rt-7008 and rt-8527] suitable for 60 kg, [uic] rail to drg.no.t-8616 & t-8617 alteration-1 of rdso with latestalteration as on date of closing of this e-tender. each set of metal liner comprises of one metal liner to drg.no.t-8616 and one metal liner to drg.no.t-8617. specification : irs specification for metal liner for use with erc[prov.]-2013 with corrigendum no.1 of october 2016 and latest corrigendum if any as on date of closing of the e-tender.