Network cable crystal quality judgment method

At first glance, look at the color of the crystal head, the quality of the crystal head is clear and clear, no variegated, no particles;

Second, look at the thickness of the crystal head, the high quality crystal head is thicker and more uniform than the inferior crystal head, and the edges and corners are distinct;

Three smells, smell the smell of crystal head, high quality crystal head without odor, no smell, no strange smell, no smell;

Four pressure, the elasticity of the crystal head, the high-quality crystal head is elastic, and the inferior crystal head is thin and weak;

Five engage, engage in the sound of the crystal head, the sound of the high-quality crystal head is crisp, and the clip behind it is more obvious.

On the one hand, the poor crystal head is not easy to clamp, on the other hand, the copper piece is easy to disconnect from the network cable, and the following points need to be noted:

1,