Currently, the transparent plastics commonly used on the market include polymethylmethacrylate (commonly known as acrylic or plexiglass, codenamed PMMA), polycarbonate (codenamed PC), and polyethylene terephthalate (codenamed PET) , transparent nylon, AS (acrylonitrile-styrene copolymer), polysulfone (code name PSF), etc. Among them, the three plastics that we are most exposed to are PMMA, PC and PET. Let's take these three plastics as examples to discuss the characteristics and injection molding process of transparent plastics.