... the features of high strength, non-combustible, waterproofing, fireproofing, preservation from decay, high adhesive strength and easy ... polluted. The fire fighting apartment states that the fireproofing door ultimate fire resistance should be 0.5 to1.5h ... rotted caused by steam,moisture or dampnessDurableCorrosion resistance, fireproofing, insect prevention,compression resistance, anti-acid. Long ...