RB air cooling machine,use ABS mateirial,integrative mold, good looking,strengthen the sanitation of the food. RB-600(110V/220V) Freezing units serial evaporator(air cooling machine),use ABS mateirial,integrative molding,no seam in appearance,good looking,strengthen the sanitation of the food,patent interior structure,can improve efficiency 15~20%,save energy and electricity,is applica-ble for ...