... 1220*2440*6-15mm 4.Delivery:7-10days 5.ISO9001 calcium silicate board building materialsIt is made from wood lengthy fiber, ... non-asbestos2) Density: 1,200 - 1,400kg/cbm3) Coefficient of thermal expansion: 0.24W / MK (JC/T54)4) Bending strength: ... : Grade A (GB-8624-1997)Features1) Heat insulation, stability, damp-proof, sound insulation, fire resistant andlight weight2) The wall is solid ...