POM has good tensible strength, mechanical properties, impact strength, abrasive resistance and lubricity. There are two colors of POM, black and white. The density of POM is 1.42, and the temperature resistance is 100℃. The insulativity of POM is excellent and immune to temperature and humidity, and the permittivity and dielectric loss change little during the wide fluctuation of temperature, humidity and frequency, therefore, it is often used for gear, accessories of automobile, instruments and jigs. The CNC cutting of POM prototype is fast, and the surface can be treated with burnish and polish. CNC machining POM prototype needs to be finished at once. It cannot work with glue.