1. Advantages: good fire-resistant properties 2. Fire rating: A-class 3. Noise-absorbing,heat insulation, ... as surface material, self-extinguishing polystyrene, rock wool, polyurethane, paper honeycomb core material such as with a hot glue curing ... 50mm ~ 100mm; length limitation [Features]1. Advantages: good fire-resistant properties 2. Fire rating: A-class3. Noise-absorbing,heat insulation,easy to ...