tender for push button switch to m/s.l&ts type tk3 or m/s. bch type t-e 30.5 mm m/shotline make to cat. no. asrm+es-1 comprising of 02 items. for emus and locos . a) shroudedpush button actuator red colour to m/s. l& ts cat. no. ss91519 or m/s.bch cat no.tsfb-r or technically equivalant, & b) element/contact block, 1no + 1nc with fixing screwsto m/s. l& ts cat. no. ss 90375 or m/s. bch cat. no.050n1 or technically equivalant.