cleaning machines for industrial and commercial use for cleaning floors, walls, pavements, concrete structures, statuaries, stair-cases, building surfaces, machinery, decks, patios, sidewalks and road pavements; hydrocleaning machines for industrial and commercial use for cleaning floors, walls, pavements, concrete structures, statuaries, staircases, building surfaces, machinery, decks, patios, sidewalks and road pavements; suction machines for industrial use, road sweeping machines