Our company is a special manufacturer on fire door cores. Our main raw material is perlite, mixed with certain inorganic high-strength adhesive and chemical additives. The following are our door core advantage,1) Environmentally friendly, no poison and radioactivity.2) Confirm to international standard, A1 grade. Fire proof limit is 0-2 hours.3) Light and easy for transport and installment.4) Easy to be cut, saw and veneered.
