1. Grade: 13%, noise reduction effect. 2. Surface panel size: 585x585 3. Panel edge size: 598x598 4. Standard: meet national gb8624 fire-retardant b1 level. 5. Certification: iso9001, sgs Material:aluminum alloy 1100 Finish surface: powder coating Standard: meet national gb8624 fire-retardant b1 level. Perforation: perforate/plain Brand: beautybond Thickness: 0.3-0.9mm High: 8mm