Machines for the production of doors made of wooden materials, plywood boards, multiple-layer parquet floors, wooden panels, composite board, single-layer boards and wood trim; Machines for conveying and stacking plate-shaped workpieces, portal stacking machines; Industrial machine presses; Machines for the treatment and refinement of surfaces made of wood or plastic material, namely, varnishing machines and drying machines; Packaging machines for plate-shaped workpieces