Ключевые слова: arm, background, brush, buffing, business, cement, clean, cleaner, cleanser, commercial, concrete, construction, dirty, equipment, floor, gray, hand, hygiene, improvement, indoors, industrial, industry, job, machine, machinery, maintenance, marble, person, polish, professional, repair, scrub, scrubber, scrubbing, service, space, surface, sweeper, tile, tool, water, wet, work, worker, working,