... cleaner:1. round stainless steel tank for BF500, solid and durable, not easy to be rusty. semitransparent plastic tank ... silent motor, with powerful suction and long runtime3. anti-cracking and heatproof machine, also waterproof and static resistance.4. the large ... plate, and base.7. suitable for the large-scale work shops, factories, stores and other kinds of cleaning field. wet and dry robitc ...