Home / Standards / GB/T 29135-2012 GB/T 29135-2012 Active Hopper dredger supervisory control system 耙吸挖泥船疏浚监控系统 Standard Type GBT ICS 47.020.70 CCS U62 Status 现行 Issue Date 2012-12-31 Implementation 2013-06-01 Responsible Dept 国家标准委 Drafting Unit N/A