Synthetic organic compounds and plastic instead of natural materials. Some species when it hardens when it is cold, the heat, it is soft. Some of the rigid fixed, nylon, neoprene rubber. It is used to make things such as clothes, film, plastic containers, vehicle component is divided into. Two types of thermosetting and thermoplastic plastics (Thermoplastic) or thermoplastic resin is a plastic that is used widely in the world receive the light and heat when cool.To freeze the image, this type of plastic can change the molecular structure is a long straight chain.
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