sideboard unit refers to a unique constant temperature storage space. According to the relevant information, it is mainly used to place tableware, catering supplies and kitchen utensils such as dishwashers, ovens and microwave ovens. The capacity of sideboards is usually different according to different applications. Generally speaking, it is measured in liters, and 1 liter can hold a food, such as a bowl of soup, a fruit or a snack.