PLYWOOD AND PLYWOOD BUILDING MATERIALS NAMELY DOORS, INTERIOR AND EXTERIOR WALLS, PARTITIONS, FLOORING, ROOFING, CEILING, SCAFFOLD DECKS, READYMADE PARTS OF PLYWOOD FOR BRIDGE BUILDING; HARDBOARD, CHIPBOARD, BLOCKBOARD, SAWN TIMBER AS BUILDING MATERIAL, WOODEN PREFABRICATED COMPONENTS NAMELY WOODEN DOORS AND DOOR FRAMES, WINDOW FRAMES; PAPER AND CARDBOARD ASBUILDING MATERIAL