Home / Standards / GB/T 38663-2020 GB/T 38663-2020 Active Identification system for internet of things—Middleware standard for Ecode identification system 物联网标识体系 Ecode标识体系中间件规范 Standard Type GBT ICS 35.040 CCS L71 Status 现行 Issue Date 2020-03-31 Implementation 2020-10-01 Responsible Dept 国家标准委 Drafting Unit N/A