... : 200mm,250mm,300mm,450mm 3.Length: 300mm,600mm,900mm,1200mm Terracotta panel1.Width: 200mm, 280mm, 300mm, 450mm;2.Length: 400mm, 450mm ... : 6~10dB14. Fire-proofing: Grade A1 Advantages of this product-terracotta tiles:1. Eco-friendly and energy saving.2. Rain screen ... pollution and pollution free. 13. Warm-keeping sound insulation performance. Terracotta panel with scored surface