High-quality perforated aluminum plate has smooth surface. Perforated aluminum plate is to punch holes with certain specifications and shapes on the aluminum plate by mechanical or chemical methods to achieve the purpose of ventilation, filtration or decoration. In the manufacturing process, if high-quality aluminum material is selected and precision machining technology is adopted, the surface smoothness of perforated aluminum plate can be guaranteed. This means that there will be no obvious irregularities, burrs and other defects on the surface of aluminum plate. If low-quality aluminum is used or the processing technology is not fine enough, the surface may be uneven.