Home / Standards / GB/T 23720.1-2009 GB/T 23720.1-2009 Active Cranes - Training of drivers - Part 1: General 起重机 司机培训 第1部分：总则 Standard Type GBT ICS 53.020.20;03.100.30 CCS J80 Status 现行 Issue Date 2009-04-24 Implementation 2010-01-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A