1, mass. Crocodile belt buckle copper is of good quality, relatively pure copper, good conductivity and plasticity, wear resistance and high quality level, while brass buckle is alloy copper, with low wear resistance and poor quality.

2. Long service life. The copper buckle of crocodile belt has long service life, rust and corrosion resistance, and can be used for a long time, while the brass shoulder has poor corrosion resistance and short service life.