Repair and replace of discharge hopper, hopper bin, hopper ducting, bucket boot, gear motor, steel plate, screw conveyor, piping work for Pellet Mill and repair chain conveyor sprocket gear, maintenance of main trolley wire rope guide sheave, cylinder & inner part, clampshell grab, gantry wheel shaft, gantry wheel roller & bearing housing, machine keyway & new key and maintenance of lower sheave grab, forestay link plate, upper inner & bottom outer forestay beam and etc.