tender for metal liner for use with erc mk-v on concrete sleeper suitable to 60 kg (uic) & 136 re rail for1673 mm gauge to rdso drg. no. t- 8616 & t-8617 (alteration-1) and irs specification for metal liners for usewith elastic rail clip (provisional-2013) with corrigendum 1 of oct 2016. (wider sleeper) .
