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Buttons can be found everywhere in our daily lives, but everyone has not thought that their composition can be very different. The buttons we use can be roughly divided into five types of plastics. One is PMMA, which is polymethyl methacrylate. The button is flat. The white shirt we usually wear. The button above is made of PMMA. The second is done with PS, ABS, PS is fragile, and the upper and lower holes are made for PS. The third type is PF, which is a phenolic resin. Buttons made of this plastic are very shiny and are generally used for more gorgeous clothing. The fourth is HDPE, which can also be used for buttons.
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