Mineral fiber ceiling board Specification: 1) Regular Size: 595x595mm,600x600mm, 603x603mm, 300x600mm, 600x1200mm 2) Main Thickness: 6mm, 7mm, 8mm, 10mm, 12mm, 14mm, 15mm ... , etc. Features: 1. Material :mineral fiber sound insulation board 2. Surface :a variety of surface patterns available 3. Edge profile: square, tegular ...