... C1magnesium board compositionMagnesium oxide (activity 85%), magnesium sulfate, wood chips, silicon carbide, low-alkali glass fiber mesh,modifierMagnesium ... alkali glass fiber mesh (density 3 X 3)6FillerLogs of wood chips, silicon carbide, vermiculite, talcWood sawdust, perlite, limestone ... the wall, the plate of the wall, the fire door plate, ceiling, etc.Fire doors lined plateConstruction site pad ...