Overhauling Kit for Throttle Valve for Pantograph type AM- 12 comprising of 04 Items 08 Nos. ( Joint for valve SIL 000354, Piston Ring SIL 000356, Joint SIL 000361 & Ring type R No. 7 SIL 000364 = 02 Nos. each ) as per Sketch No. BSL/ ELW/ SK No. 4009 or latest.