... 4) Fireproof. 5) Acoustics. PRANCE BUILDING MATERIAL CO.,LTD is a leading professional manufacturer of ceiling ... your engineer. SupplierFoshan Prance builiding material Co., LtdCareerPRANCE BUILDING MATERIAL CO., LTD. is a leading professional ... 262, 4, 84 Bitmap CE En13162Raw materialsperlite, mineral fiber, organic fiber, additive(some chemical stuff )Measures610x610, 610x1220, 595x595, ...