POM is an engineering plastic with excellent performance, known as "snatching steel" or "super steel" abroad. POM has similar hardness, strength, and toughness to metals, and has good self-lubrication, fatigue resistance, and elasticity over a wide range of temperature and humidity. In addition, it also has good chemical resistance. POM, with a lower cost than many other engineering plastics, is replacing some markets traditionally occupied by metals, such as zinc, brass, aluminum, and steel to make many components. Since its inception, POM has been widely used in fields such as electronics and electrical, machinery, instruments, daily light industry, automobiles, building materials, agriculture, and so on. In many new fields such as medical technology and sports equipment, POM has also shown a good growth trend.