BS 6649-1985 Specification for clay and calcium silicate modular bricks (No longer current but citedBS 6649-1985 Specification for clay and calcium silicate modular bricks (No longer current but cited in Building Regulations)
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。