Engineering Plastics¡]Chinese¡G¤uµ{¶ì®Æ¡^refer to high performance plastics in which the strength, impact resistance, heat resistance, hardness and ageing resistance are all outstanding. It is a structural material for industrial use. Engineering-plastics can be classified into special engineering-plastics and universal engineering-plastics. The latter refer to 5 types of plastics: polyamide (PA), polyoxymethylene (POM), polycarbonate (PC), polyphenylene oxide (PPO) and polyester (PBT and PET) while the former usually indicate high performance engineering-plastics other than those 5 plastics. When classified according to operating temperature, those operate under 150oC are often universal engineering-plastics (generally between 100¢J - 150¢J) and those operate above 150¢J are special engineering-plastics. Special engineering-plastics are further divided into 150¢J - 250¢J (compounds that include universal engineering-plastics) and over 250¢J. The higher the operating temperature, the higher the price is.
