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  • 11
  • Oct

ទ្វារភ្លើង 1 ម៉ោង។

The fire resistance time of Class B steel fire door shall not be less than 1.0 hour, and the hardware fittings used on the fire door must also be fire-resistant hardware fittings.

ទ្វារភ្លើង 1 ម៉ោង។-ZTFIRE Door- Fire Door,Fireproof Door,Fire rated Door,Fire Resistant Door,Steel Door,Metal Door,Exit Door