supply of procurement of set of three items for gd make air compressor model wlna9bb for hhp diesel locomotives.procurement of set of three items for gd make air compressor model wlna9bb for hhp diesel locomotives.,set of three following items for gd make air compressor model wlna9bb for hhp diesel locomot ives. note:- the firm has to issue coc (or) wtc along with supply. (1) gaske ring lp to gd part no.25l7 - qty. 0 2 nos. (2)gasket ring for set screw to gd pt.no.25f13 - qty. 02 nos. (3) discharge valve cover gasket lp to gd pt.no.225wln715 - qty.02 nos. [ warranty period: 30 months after the date of delivery ] ]