Engineering plastics developed rapidly in the 1950s. Engineering plastics profiles have excellent comprehensive properties, such as high rigidity, small creep, high mechanical strength, good heat resistance and good electrical insulation. They can be used in harsh chemical and physical environments for a long time, and can replace metals as engineering structural materials. They occupy an important position in the field of materials.

Compared with general plastics, engineering plastics can meet higher requirements in mechanical properties, durability, corrosion resistance, heat resistance and other aspects, and processing is more convenient and can replace metal materials. Engineering plastics are widely used in electronics, electrical, automotive, construction, office equipment, machinery, aerospace and other industries. With the improvement of material technology and design technology, the application of engineering plastics in place of metal materials is increasing. It has become an international popular trend to replace steel with plastic and wood with plastic.

Engineering plastics has become the fastest growing field in the world plastics industry. Its development not only plays a supporting role in the national pillar industry and modern high-tech industry, but also promotes the transformation of traditional industries and the adjustment of product structure.

The application of engineering plastics in automobile field is increasing day by day. It is mainly used for interior decoration of bumper, fender, fuel tank, dashboard, body panel, door, lampshade, fuel pipe, radiator and engine related parts.

In the mechanical field, engineering plastics can be used for mechanical parts such as bearings, gears, screw nuts, seals, and shell, cover plate, handwheel, handle, fasteners and pipe joints.

In the field of electronics and electrical appliances, engineering plastics can be used for insulating materials such as wire and cable cladding, printed circuit boards, insulating films and structural parts of electrical appliances.

In the field of household appliances, engineering plastics can be used in refrigerators, washing machines, air conditioners, TV sets, electric fans, vacuum cleaners, electric irons, microwave ovens, rice cookers, radios, combined audio equipment and lighting appliances.

In the chemical industry, engineering plastics can be used in heat exchangers, chemical equipment lining and other chemical equipment, as well as in pipes and pipe fittings, valves, pumps and other chemical pipelines.