... embossing. 2.Suitable:cold or hot rolling board. 3.Double surface pattern. 4.Size:accroding to customize. Mechanical Metal Embossing For ... aluminum, color steel, cold-rolled board sheet, stainless steel.etc2. Pattern: rain drops, stucco, star, grain rice ,diamond and so ... outer walls, elevator car walls.etc.6. Double side pattern:high simulating degree,clear figure,obvious line and coherent gradation ...