The RFH nanosecond UV laser gave a perfect answer in alumina whitening   Alumina is a chemical material resistant to chemical corrosion, high temperature resistance and not easy to burst. Its hard coating has a high melting point, high hardness, and excellent heat. It is widely used in many fields such as electronics, petroleum, chemicals, ceramics, and plastics. . In the use of alumina, the whitening process is the basic operation process, but many aluminum industries still encounter the problem of insufficient whitening color. In this regard, RFH's UV laser has delivered a perfect answer.