BS 5395-1-1977 Stairs, ladders and walkways — Part 1 Code of practice for the design of straight staBS 5395-1-1977 Stairs, ladders and walkways — Part 1 Code of practice for the design of straight stairs
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。