minernal fiber board is used as suspending ceiling, economical with good acoustics, Nondirectional and Reliable performance Mineral Fiber Board( mineral fibre ceiling)1.Type: light density (280-350Kg/M3)heavy density (350-450Kg/M3)2.Specification: Size: 595*595mm, 600*600mm, 603*603mm,600*1200mm,595*1195mmThickness: 6,7,7.5, 8, 8.5, 9,10, 11, 12,15, 16, 18, 20mm3.Surface pattern: little-stars, ...