we emboss the aluminum plate surface with uneven patterns to reach certain finishing and ornamental requirements. The rolling process requires rolls with patterns, which are carved by corrosive liquid. And the convex-concave degress is decided by film, in order to resist erosion, static, making it clean-friendly, fireproofing and well-radiating. this product suits the best for house furnishing, with its smoothing surface and fadelessness, and it adopted as lining panet for fridges and freezers.