瑞益防火建材

(隔音+防火)門証書

符合 BS476 : Part 22, BS EN 1634-1 之防火標準 + 符合BS2750 : Part 3 之隔音標準的木門或鐵門。

Fire-rated + Acoustic Test Certification

Fire-rated + Acoustic Test Certification 1Fire-rated + Acoustic Test Certification 2