專家解讀視頻
基本信息
標準編號： SS 489-2001
出版單位：SG-SPRING SG
標準頁數：0
標準簡介
This standard specifies requirements and testing methods to assess the fire-resistance of the shutter required to protect openings in walls and to resist passage of fire.\nThis standard applies to fire-resistant vertical roller shutters, lateral shutters, horizontal roller shutters and folding sliding shutters.
