Self-propelled machines and machines that can be pushed, operated by means of gasoline, diesel, electric and hydraulic motors and engines, for ground treatment, for abrasion, and leveling, namely, floor sanders and grinders; self-propelled machines and machines that can be pushed, operating by means of gasoline, diesel, electric and hydraulic motors and engines for structuring of coatings and coverings, particularly for asphalt, concrete, plastic materials and rubber, all in the nature of asp...