| Core material soaked by special chemical fire proof mixed water and then dried, combined powder pearl inflation panel with unique manufacture procession ,fixed up our own D&R fire rated rubber seal , makes our fire proof solid wood door on the high level of quality . we got 30 ,60minutes English standard fire resistant certificate from the Chiltern International Fire Co.,Ltd, the assessment is conducted in terms of the current fire resistance test standard, BS476:Part 22:1987. Our products also meet national standard, and passed ISO9001/2000 world quality management system attestation. The best we can make solid wood doors to 120 mimutes fire resistant |
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