About 67 of these are doors 17 are magnesium oxide boards and 1 are flakeboards.
Perlite fire door core.
You can also choose from 5 years 1 year and n a perlite fire door core board there are 70 suppliers who sells perlite fire door core.
Chimney liner due to its non flammable and insulating nature perlite is often used in fire retardant applications such as chimney liners.
Fireproof insulating door cores perlite is the perfect filling material for door cores because it is naturally lightweight inorganic insulating non combustible and fireproof giving it a high r value.
China perlite board find detail steel fire door from zhangjiagang tianyuan machiney manufacturing co ltd.