BS 476 Part 21:1987 Fire test on building materials and structures-Part 21: Method for Determination of the fire resistance of load bearing elements of construction.
BS 476 Part 21:1987建筑产品及构件的防火测试,第21部分:承重材料的耐火性能测试。
更多BS476-21耐火测试,请咨询中国防火网
...
BS 476 Part 21:1987 Fire test on building materials and structures-Part 21: Method for Determination of the fire resistance of load bearing elements of construction.
BS 476 Part 21:1987建筑产品及构件的防火测试,第21部分:承重材料的耐火性能测试。
更多BS476-21耐火测试,请咨询中国防火网
...
BS 476 Part 21:1987 Fire test on building materials and structures-Part 21: Method for Determination of the fire resistance of load bearing elements of construction.
BS 476 Part 21:1987建筑产品及构件的防火测试,第21部分:承重材料的耐火性能测试。
更多BS476-21耐火测试,请咨询中国防火网
...