BS 2573-2-1980 Rules for the design of cranes. Specification for classification, stress calculationsBS 2573-2-1980 Rules for the design of cranes. Specification for classification, stress calculations and design of mechanisms
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。