Home / Standards / GB/T 39905-2021 GB/T 39905-2021 Active Regional brand valuation—Industrial clusters 区域品牌价值评价 产业集聚区 Standard Type GBT ICS 03.140 CCS A00 Status 现行 Issue Date 2021-03-09 Implementation 2021-10-01 Responsible Dept 国家标准委 Drafting Unit N/A