The difference between the middle and the side of Chinese clothes buttons is as follows. Hanfu emphasizes buttons in the middle. Belt buckles are also called buttons, knots or buttons. It is a button used in traditional clothes, which is used to fix skirts or decorate them. If an exquisite cheongsam is a landscape painting, then the buckle is the finishing touch. The belt buckle originated in Song Dynasty contains China's ancient complex. Buckles are usually a pair, the male is a knot and the female is a ring. The manufacturing process of buckle is very complicated.