Class A fire door Doors filled with refractory material
Magnesium chloride magnesium oxide perlite and other mixtures
Different. Most of the perlite fire board, individual foam door core board, vermiculite fire board, MC material and so on fire protection materials.
A, B, C fire doors inside filled with fireproof material is the same, perlite, new fireproof material! The difference is that their thickness is not the same! The structure is generally such a surface panel, fire board frame (filled with perlite) anti-plant 窢 class drink direct assessment trip Taiwan Leopard County fire board panel! The
