BS 476 Part 20:1987 Fire tests on building materials and structures. Methods for determination of the fire resistance of elements of construction(general principles)
BS 476 Part 20:1987建筑材料及构件防火测试,建筑构件耐火的测定方法(一般原理).
更多BS476-20耐火测试,请咨询中国防火网
...
BS 476 Part 20:1987 Fire tests on building materials and structures. Methods for determination of the fire resistance of elements of construction(general principles)
BS 476 Part 20:1987建筑材料及构件防火测试,建筑构件耐火的测定方法(一般原理).
更多BS476-20耐火测试,请咨询中国防火网
...