Explain selection of plastics for specific applications.
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plastics is very harmful in our environment.plastic is not good our environment.
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The selection of a plastic material for a specific application can be a difficult task. After careful consideration, the possibilities may be narrowed to two or three candidates and the final selection is then determined by testing. The first and most important step in selecting a plastic material from the broad range of available materials (i.e., acrylic, polycarbonate, UHMW, Delrin, nylon, etc.) is to carefully define the requirements of the application, the physical properties required and the environment in which the material will need to perform. The following list of questions or considerations should be used to define the application as completely as possible.
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