China 'GB/T 32076.3-2015
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 32076.3-2015
High-strength structural bolting assemblies for preloading—Part 3: System HR—Hexagon bolt with large width across flats and nut assemblies 预载荷高强度栓接结构连接副 第3部分:HR型 大六角头螺栓和螺母连接副
Issued Date:2015-10-09
Implemented Date:2016-06-01
Issued by:
The Standardization Administration of the People's Republic of China