GB/T 20957.1-2007
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 20957.1-2007
Test conditions for precision machining centres - Part 1: Geometric tests for machines with horizontal spindle and with accessory heads (horizontal Z axis) 精密加工中心检验条件 第1部分:卧式和带附加主轴头机床几何精度检验(水平Z轴)
Issued Date:2007-06-25
Implemented Date:2007-11-01
Issued by:
The Standardization Administration of the People's Republic of China