procurement of various spares for 36 gravimetric raw coal feeder of boiler unit no. 10 and 11 stps, sarni , spares for 36”gravimetric raw coal feeder , head pulley grease seal , head pulley wear sleeve material code- 91604735752-01 , head pulley o ring material code- 91604818887-01 , belt take-up pulley material code- 05506090015-01 , belt take-up pulley shaft material code - 91604735302-01 , retainer-ring for belt take-up pulley bearing material code - 91604818889-01 , grease seal for belt take-up pulley , gasket for belt take-up screw housing , weigh span roller grease seal material code - 91604818886-01 , weigh span roller retainer-ring material code- 91604818888-01 , drag link assembly material code - 91604817916-01 , inlet span roller material code - 05506070013-01 , tension roll retainer-ring , clean out drive shaft with sprocket , chain take-up shaft with sprocket material code - 91604735309-01 , chain take-up grease seal , chain take-up wear sleeve material code - 91604735754-01 , chain take-up retainer-ring material code - 91604818889-01 , belt scraper material code -91604736632-01 , calibration shaft material code - 05506090054-01 , inlet span roller bearing housing material code - 91604735756-01 , weigh span roller bearing housing => limited