interior decoration 1. 500x500, 600x600, 300x1200, 600x1200mm or customized 2. 15 delivery interior decoration1) material: 1100 aluminum alloy or galvanized steel2) surface finish: outdoor polyester powder coating, film surface finish.3) Surface style: perforated(dia.1.8mm, 2.3mm, 3.0mm, 5.0mm), non-perforated.4) edge type: clip-in, lay-in.5) Size: 300x300, 400x400, 500x500, 600x600, 300x1200, ...