annual maintenance contract for maintenance job boiler accessories amc for various maintenance job of b and a equipments like fd , id , pa , rotary aph , chemical pump , compressor etc . of 2x 250 mw units of stps , wbpdcl for two years , amc for various maintenance job of b&a equipments like fd , id , pa , rotary aph , chemical pump , compressor etc . of 2x 250 mw units of stps , wbpdcl . , monthly assured amount for lumpsum scope of work . , replacement of aph ( model : 27 . 5 vimt 2000 ) support bearing with all associated work . ( spl jack for lifting the assy is in party scope ) , replacement of aph ( model : 27 . 5 vimt 2000 ) guide bearing with all associated work . , flue gas duct patch work by welding during short shutdown of unit . , fabrication/erection of steel structure , placement of ms gratings and with necessary railing and toe guard of structural area as per requirement with necessary scaffolding and welding job etc . , red oxide painting ( two coat ) for different equipments with supply of paints . ( make-burger or equivalent ) , epoxy resin painting ( two coat ) for different equipments with supply of paints . ( make-burger or equivalent ) , aluminium oxide painting ( two coat ) for different equipments with supply of paints . ( make-burger or equivalent )