GB/T 20957.2-2007
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20957.2-2007
Test conditions for machining centres - Part 2: Geometric tests for machines with vertical spindle or universal heads with vertical primary rotary axis (vertical Z-axis) 精密加工中心检验条件 第2部分:立式或带垂直主回转轴的万能主轴头机床 几何精度检验(垂直Z轴)
Issued Date:2007-06-25
Implemented Date:2007-11-01
Issued by:
The Standardization Administration of the People's Republic of China