上QQ阅读APP看本书,新人免费读10天
设备和账号都新为新人
NATIONAL STANDARD OF THE PEOPLE S REPUBLIC OF CHINA
Technical Code for Concrete-filled Steel Tube Arch Bridges
GB 50923-2013
Chief Development Department:Ministry of Housing and Urban-Rural Development of the People s Republic of China
Approval Department:Ministry of Housing and Urban-Rural Development of the People s Republic of China
Implementation Date:June 1,2014
China Planning Press
Beijing 2019