The main part of the mixed material frame is a spectacle frame made of a mixture of non-metallic materials and metallic materials. There are many different types of mixed material frames. Some different parts use different materials. For example, the bridge of the nose and the hinge are made of metal, and the frame of the outer frame is made of non-metallic material. The mirror ring is made of metal, the temples are made of non-metallic materials, and so on.