[ Machines and ] machine tools, namely, [ floor and wall grinders and sanders, vacuum cleaners, ] polishers; grinding, cleaning and polishing tools and discs; [ floor conditioning machines and devices, namely, trowellers, scrubbers, auto-scrubbers, floor buffers; ] equipment [ and appliances ] for floor conditioning machines and devices, namely, grinding, cleaning and polishing pads, washing, polishing and waxing disks, diamond grinding pads, diamond polishing pads, diamond disks; [ power ope...