China 'GB/T 4772.1-1999
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 4772.1-1999
Dimensions and output series for rotating electrical machines--Part 1:Frame numbers 56 to 400 and flange numbers 55 to 1080 旋转电机尺寸和输出功率等级 第1部分:机座号56~400和凸缘号55~1080
Issued Date:1999-02-26
Implemented Date:1999-09-01
Issued by:
The Standardization Administration of the People's Republic of China