... -alkali glass fiber mesh,modifierMagnesium 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, perlite, high alkali glass fiber ...