carrying out miscellaneous shrouding rectification works of sub station gratings conducting dp test for the welded joints in pressure parts erection of temporary platform inside furnace just above gooseneck erection shifting and dismantling of pneumatically operated sky climbers high pressure jet cleaning of furnace water wall tubes opening of inlet coil seal boxes rectification seal trough plates providing of carbon steel square rods to s panel bends providing of clamps for coil tubes to hanger