How to distinguish the quality of cutting grinding wheel?

1. The sand wheel manufacturer recommends to check the label and display of the profile cutting machine to see whether the parameters on the factory nameplate are consistent with those in the 3C certificate.
2. Check the outer packing box of the profile cutting machine. The outer packing box should have a clear design and no damage. Open the packing wooden box, observe the appearance of the profile cutting machine, the color should be consistent. There should be no obvious shadows and pits on the surface of plastic parts. According to the accumulated experience of the grinding wheel manufacturer, there should be no scratches or embossing marks. Aluminum cast coating should be smooth, beautiful and free of defects. The entire equipment surface should be free of oil stains and dirt.
3. Hold the cutting machine firmly with your hands, turn on the power, often operate the switch with your hands, and use tools frequently to observe whether the switching function of the cutting machine switch is reliable.