... , Gost, ISO........) Magnesium oxide board, Glass Magnesium board, Thermal Insulation Materials, Glass fiber ceiling board, fireproof board, new style board ... 3) Density: 230-250kg/m³ 4)density of the fiberglass mesh 4x4mm, 6x6mm,5) without fly ash in our boards6 ... )without non-alkaline fiberglass7) Applications: partition wall of office room, shopping ...