Generally, the wood used for wooden fire doors shall be subject to corresponding fire retardant treatment to ensure that the wood will not be ignited quickly in case of fire. As an important fire isolation and personnel escape equipment, wooden fire doors are generally set at the corridor entrances, emergency exits and distribution shafts of high-rise buildings and public places.

Varavaran’ny afo ZHTdoors, traikefa famokarana 31 taona amin’ny varavarana afo sy Windows. Ny UL lehibe varavarana afo, EN varavarana afo, BS EN afo varavarana, sns.