Polymethyl methacrylate as a transparent material with good performance is widely used in the following aspects: lamps and lighting equipment, such as household lamps, fluorescent lampshades, car tail lights, signal lights, road signs, optical glass products, such as manufacturing various Lenses, reflectors, camera light-transmitting lenses; preparation of various instrumentation dials, preparation of optical fibers, commercial advertising windows, billboards, aircraft cockpit glass, bulletproof glass for aircraft and cars, etc.