Home / Standards / GBT 29001.4-2012 GBT 29001.4-2012 Numerical control system of machine tool—NCUC-Bus fieldbus protocol specification—Part 4: Application layer 机床数控系统 NCUC-Bus现场总线协议规范 第4部分:应用层 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