Stainless steel has become the preferred substrate for many high-end industrial rollers due to its excellent corrosion resistance and good mechanical properties. The main alloying element in stainless steel is chromium, which generally ranges from 10.5% to 30%, which makes stainless steel have excellent oxidation resistance and corrosion resistance.

Combining the characteristics of tungsten carbide and the working principle of metal detectors, we can draw some preliminary conclusions. Although tungsten carbide is a metal compound, due to its poor conductivity and non-magnetic properties, metal detectors have limited ability to detect tungsten carbide coatings.

Polishing is the most common method for repairing scratches on the surface of industrial mirror rollers. By using high-precision polishing machines and polishing materials (such as aluminum oxide, corundum, etc.), scratches on the surface of the roller can be removed to restore the smooth mirror effect.