A prefabbing shielding wall

PURPOSE: A prefabricated shield is provided to easily replace a decoration unit when the decoration unit is damaged and to reduce the assembling time of the decoration units. CONSTITUTION: A prefabricated shield comprises C-shaped sliding units(156), fastening rivets, support plates, protrusions, and decoration plates(170). The sliding units vertically touch the top of first and second support frames(138,142) and have fastening holes and connecting holes. The fastening rivets are fastened to the housing holes of cylindrical units through the fastening holes of the sliding units and allow the sliding units to slide. The support plates touch the top of the sliding units and are fixed to the sliding units through fixtures. The protrusions are extended upward from the top center of the support plates and have fastening grooves. The decoration plates have fitting units fitted to the fastening grooves of the protrusions.