First step: Coarse grinding/fixed thickness sanding, using F-paper sand belt, calcined brown corundum abrasive, anti-static, P60-P80:

Second step: Fine grinding and polishing, using F-paper sand belt, calcined brown corundum abrasive, anti-static, P100-P400;

Third step: Polishing the paint surface using F-paper sand belt, calcined brown corundum abrasive, sparse planting sand, anti-static P240-P800;

For particleboard and fiberboard, silicon carbide paper sand belts can also be used, and composite based sand belts can be used for the first and second layers

For wood with high resin content, surface coated paper sand belts are used to reduce the possibility of resin adhesion.