The aluminum veneer with the thickness less than 2.0 mm cannot be used for exterior wall decoration. The aluminum veneer treated by carving and hollowing out has the characteristics of air permeability, which is more affected by the wind than that of ordinary curtain wall. If the thickness is insufficient, the deformation will occur, It affects the overall appearance. It is suggested that the thickness of the carved aluminum veneer should be controlled above 2.0 mm. Our company introduces the imported hollow engraving technology to cut the aluminum veneer according to the designer's figure. The process accuracy is high, and the surface is not damaged. When the workpiece is processed, it is cut in the cooling state without deformation. The cutting surface is smooth and free of burrs, with fine process and high accuracy , good quality, can customize a variety of high-precision, complex drawings, large-scale drawings, special-shaped drawings, curves and other complex pattern cutting.