BS 476-21-1987 Fire tests on building materials and structures. Methods for determination of the firBS 476-21-1987 Fire tests on building materials and structures. Methods for determination of the fire resistance of loadbearing elements of construction
部份国外标准涉及版权问题,所以全部国外标准于2013年02月,全部删除!相关页面仅提供参考消息。