... Food Trolley :1.Wheels: Four small wheels which is convenient to push by hands.2.Chassis : integral steel frame construction and ... system.4.Flooring: Non-slip flooring(aluminum)with drain, easy to clean up.5.Electric accessories: Lighting device, socket, voltage governor ... system : Double sinks with hot and cold water taps, a fresh water tank, a waste water tank, 12V mini water pump, 12V battery, and on ...