Home / Standards / GB/T 30561-2014 GB/T 30561-2014 Active Cranes―Stiffness―Bridge and gantry cranes 起重机 刚性 桥式和门式起重机 Standard Type GBT ICS 53.020.20 CCS J80 Status 现行 Issue Date 2014-05-06 Implementation 2014-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A