tender for inhibited mineral insulating oil for 3 phase loco transformer as per iec :60296-2003 and clw spec.no.-clw/es/3/0172 (latest and rdso requirement) as per m/s.shellfor shell diala s3zx-i, new delhi or m/s. apar rabale for power oil to-10x or m/s.savita-navi mumbai works or equivalent rdso approved brands.