UL wood fire door has paint door and paint free door, and the fire resistance limit is 20 to 180 minutes. In addition, the hardware fittings of UL fireproof door shall generally bear the UL label.

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.