Tender For supply of set of overhauling kit for conductor valve to graham white pt no-47-000 consisting of 2items as following: (1) valve seat 4711-017---qty/set-01 no (2) seal 2551-000--qty/set01 no, [make- graham or topgrip or similar. suitable for conductor valve graham whitept no 47-000 fitted in hhp locos.