supply of overhauling kit for duplex check valve of m / s faiveley make to pt.no.790039105 for air spring suspension of emu coachesoverhauling kit for duplex check valve of m / s faiveley make to pt.no.790039105 for air spring suspension of emu coaches, overhauling kit for duplex check valve of m / s. faiveley make to part no.- 790039105 for air spring suspension system of emu coaches consisting of 4 ( four ) nos. items in set and conforming to rdsos specn. no.- c-k-407 ( rev.-03 ) , amendment-1 of september 2018. items are as ( i ) valve seat ( sub assly ) to m / s. ftrtil part no.-039101000.qty / set:02 nos., ( ii ) compression spring to m / s. ftrtil part no.-039802000. qty / set:02 nos, ( iii ) seal ( 26x33x1 ) to m / s. ftrtil part no.-039703000. qty / set:02 nos., ( iv ) joint ( 19x33x1 ) to m / s. ftrtil part. no.-039704000. qty / set:01 no.. [ warranty period: 30 months after the date of delivery ]