... coating (PVDF ). Built in composite aluminum honeycomb. Fire prevention high frequency acoustic plate side 1. Roll the ceiling color, the ... . 2. Strong pressure to bear both the deformation of high winds, but also free cutting, slitting, punching, slotting, ... moisture-proof anti-deformation.2 Fire Safety3 green4 High sound insulation5 energy-saving insulationspecification600*600*25mm 600* ...