Home / Standards / GB/T 34296-2017 GB/T 34296-2017 Active Specification of hail event surveys 地面降雹特征调查规范 Standard Type GBT ICS 07.060 CCS A47 Status 现行 Issue Date 2017-09-07 Implementation 2018-04-01 Responsible Dept 中国气象局 Drafting Unit N/A