procurement of of hot air gate shafts and other spare attachments of shaft and gland housings to be used in stg-1, sgtpp boiler. , procurement of of hot air gate shafts and other spare attachments of shaft and gland housings to be used in stg-1, sgtpp boiler. , hot air gate locking shaft ( individual shaft key and extra 12 nos key ) , gland housing for locking shaft for coal mill hag at 300 mw boiler , bonnet for hot air gate locking shaft # , bush bearing,gun metal,housing-en8,hag for hag locking shaft of coal mill zgm123n drawing no-sgtpp/bm1/mechanical/322 , gland housing for sliding shaft hag for coal mill hag 300 mw boiler , end cap for hag for coal mill hag 300 mw boiler => limited