Home / Standards / GBT 34880.1-2017 GBT 34880.1-2017 Test conditions for five-axis simultaneous machining centers — Part 1: Accuracy testing of horizontal machines 五轴联动加工中心检验条件 第1部分:卧式机床精度检验 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A