1.It does not contain heavy metals such as Cr⁶⁺, meeting environmental protection requirements and complying with the ROHS directive. 

2.It boasts excellent salt - spray resistance and a long service life. 

3.It has good adhesion, preventing the coating from peeling off or flaking and enhancing the protective performance of the coating. 

4.It requires a short processing time, resulting in high production efficiency. 

5. It is compatible with most existing equipment, reducing the investment in equipment transformation.