... . Thickness: 7.0 mm, 7.5mm, 8.0mm, 8.5mm, 9.0mm, 9.5mm, 10.0mm, 10.5mm, 11.0mm, 11.5mm, 12.0 mm 3. Feature ... 8). Sound insulating: Effectively solve sound insulation and fire proof. 9). Not deforming, not cracking: Keeping integrity and sound insulation for ...