Which nature materials can make eyeglass frames?
The natural materials used to make eyeglass frames include tortoiseshell, special wood, and animal head horns. Generally, wooden eyeglassses frames and horn frames are rare, and tortoiseshell eyeglassses frames are common. 1. Tortoiseshell frame It is a frame of eyeglassses made from tortoiseshell shells produced in the tropical sea, and is mainly produced in the…