Home / Standards / GB/T 12458-2017 GB/T 12458-2017 Active Coupling—Classification 联轴器 分类 Standard Type GBT ICS 21.120.20 CCS J19 Status 现行 Issue Date 2017-05-12 Implementation 2017-12-01 Responsible Dept 国家标准委 Drafting Unit N/A