Aluminum Ceiling Board Features: 1. Install with minumum plenum clearance. 2. Ployster pre-coated baked paint assures the most durale of color retention.Maystable forover 10 years. 3. Excellent sound absorption and acoustic insulation. 4. Excellent resistance to dirt and/or grease. 5. Soil-resistance, excellent durabality. Application: Retail Stores,super-markets Outside,Gas-station,Tollgate Offices,Conferece Rooms Hall,Airport,Shopping Mall Technical Performance: Typical Sound Absorption Perforated with Soundtex paper NRC=0.70 0.80 Typical Sound Attenuation Plain CAC=40dB Perforated CAC=24dB Fire Classification: China B1 Class Perforation: All aluminum ceilings can also be perforated according to customers requirements. Hole Type Dia(mm) Standard preforated 2.5 Micro perforated 1.5 Extra-micro perforated 0.7 Color: Standard Color: Global White Other: According to customers requirements. Material: High quality aluminum alloy or galvanzied steel. Specifications: There are various specifications and styles ofmetal ceiling panel,thus it can be divided according to design requirement. Lay-In System: 600x600 600x1200 800x800 600x1800 600x2400 1200x1200 1200x2400 1500x1500 1500x3000 Clip-In System: 600x600 600x1200 800x800 1200x1200 1200x2400 1500x1500 Thickness: 0.6mm 40mm Coating Ployster powder painting. For further information or questions please do not hesitate to contact us.