lining up of contract for refractory repair jobs in primary reformer , secondary reformer , cold collector and r . g . boiler of ammonia plant at rcf thal , contract for refractory repair jobs in primary reformr , secondary reformer , cold collector and r . g . boiler of ammonia plant , removal & replacement of fire bricks for scope of work mentioned at scope of work point no 3 . 0 , removal & replacement of burner blocks as per scope of work mentioned at scope of work point no 4 . 0 , for removal & recasting of castable refractory up to 1 mt mentioned at scope of work point no in 5 . 0 , for removal & recasting of castable refractory from 1 mt to 3 mt mentioned at scope of work point no 5 . 0 above , for removal & recasting of castable refractory above 3 mt mentioned at scope of work point no 5 . 0 , unit rate for supervisor ( manpower rates for additional refractory jobs ) , unit rate for mason ( manpower rates for additional refractory jobs ) , unit rate for carpenter ( manpower rates for additional refractory jobs ) , unit rate for helper ( manpower rates for additional refractory jobs ) , mobilization per person per trip