Home / Standards / GB/T 39210-2020 GB/T 39210-2020 Active Draught and soil loading system of hopper dredger 耙吸挖泥船吃水装载系统 Standard Type GBT ICS 47.020.70 CCS U62 Status 现行 Issue Date 2020-10-11 Implementation 2021-05-01 Responsible Dept 交通运输部 Drafting Unit N/A