Main Characteristics: Material Base:MGO Board Surface material:laminated PVC Back material:superior aluminum foil Bending strength:15Mpa (GB/T7019-1997) Density:0.8-1.1g/cm3 (GB/T7019-1997 Absorbing water rate 15% (JC688-1998) Fireproof characteristic:A grade not combustible (GB8624-1997) no combustible (BS476 Part4) Thermal resistance:1.14m2K/W (GB/T13475-92) The corner is dealt with:Bright