Acrylic (PMMA), also known as perspex, has the advantages of light weight, high transparency, easy machining, weather resistance, etc. It is widely used in TV displays, lighting, handicrafts, exhibitions, transportation facilities, advertising, furniture and other fields. Signs can be seen everywhere in the streets, sound barriers on highways, booths and shelves in major Superstore, colorful handicrafts, unique fashion furniture… Acrylic can be seen everywhere.