1). Acetal enamelled wire; thermal class 105 and 120 in two, good mechanical strength, good adhesion, resistance to transformer oil and refrigerant resistant performance, but the product moisture resistant performance is poor, low temperature heat soft breakdown, durable benzene alcohol mixed solvent performance is weak, at present only a small amount of used oil immersed transformer, oil filled motor winding.

2). Polyester and modified polyester enamelled wire, ordinary polyester enamelled wire, heat grade of 130, after modification of enameled wire thermal grade of grade 155. The product has high mechanical strength, and has good elasticity, scratch resistance, adhesion, electrical properties and solvent resistance properties, it is a variety of China's largest production, accounting for about 2/3, widely used in all kinds of motor, electrical, instrumentation, telecommunications equipment and household appliances; the product is a weakness thermal shock performance is poor, low humidity resistance.

3). Pu enameled wire; heat grade 130.155.180. has the advantages of high frequency straight welding, good performance, easy coloring, moisture resistant properties, widely used in electronic appliances and precision instruments, telecommunications, instrumentation, the product is slightly poor mechanical strength weakness, heat resistance is not high, and the production of large size line flexibility and adhesion is poor, so the product specifications and production in small and medium micro wire for.

4). Polyester imide enamelled wire, heat 180, thermal shock performance of the product is good, softening breakdown resistance to high temperature, excellent mechanical strength, solvent resistance and refrigerant performance were good, weakness is easy to hydrolysis under closed conditions, widely used in motors, heat high requirements of electrical appliances, instruments, electric tools, electric power dry transformer such as winding.

5). Polyester imide / polyamide imide composite layer of enameled wire, at home and abroad are widely used in heat-resistant enameled wire, the heat level is 200, the product has high heat resistance, resistance to refrigerants, cold resistant, radiation resistant properties, high mechanical strength, stable electrical properties, chemical properties and resistance a good performance, strong overload capacity. Widely used in refrigerator compressors, air conditioning compressors, power tools, explosion-proof motor and high temperature, cold, radiation resistance, overload and other conditions of the use of motor, electrical appliances.