There are two main concepts of catering: one is catering, such as Goubuli steamed stuffed bun and sweet-skinned duck, which manages catering and provides catering. Second, it refers to catering industries or institutions such as liao ribs and Wuming Hotpot, which meet the dietary needs of diners and thus obtain corresponding service income. Because people in different regions and cultures have different eating habits and tastes, restaurants around the world have diversified characteristics.