perforated acoustic panel Finish: melamin,veneer, anti-fire plate and metal finish etc. perforated acoustic panel backside tissue: it's black color, sticked at the back side of the panel; it have anti-fire and sound absorption function. perforated acoustic panel Base material: normal base material, pine wood base material, and anti-fire base material perforated acoustic panel Size: 600X600MM OR 1200X600MM OR 2440X1220MM perforated acoustic panel Thickness:12mm / 15mm / 18mm perforated acoustic panel Item: E16/6 ; E16/10; E32/6 ; V32/6; V 32/3-10perforated acoustic paneleasy installation: Can use nail to fix it or use T shape keel around to fix.