Acrylic is also called PMMA or sub-afterburner. They are all Chinese names of English acrylic, which is actually plexiglass when translated. The chemical name is polymethyl methacrylate. Hong Kong people call it Yali, which is an important thermoplastic developed earlier. It has good transparency, chemical stability and weather resistance, easy dyeing, easy processing and beautiful appearance, and is widely used in the construction industry. Plexiglass products can usually be divided into pouring plate, extrusion plate and molding compound.