... keep freshnessApplication: Rice, wheat, flour, foods, vegetables, fruits, beverages, beer, wine, beer bucket, tea-leaf, etc.Specifications:1. Rated voltage: 100V ... : Zine board with AL-Galvanized (according to RoHS standard and corrosion-resistant).(4) Thermal Insulating layer: High-density Polyurethane ... special requirements can be custom-made Commercial Refrigerator/vegetable and beverage fridge