... oxide (activity 85%), magnesium chloride, sawdust, perlite, alkali glass fiber mesh, modifierMagnesium oxide (activity 80%), magnesium chloride, ... sawdust, perlite, high alkali glass fiber mesh, modifierMagnesium oxide (activity 70%), magnesium chloride, sawdust ... (density 4 X 4)High-alkali glass fiber mesh (density 3 X 3)6FillerLogs of wood chips, silicon carbide, ...