Home / Standards / GB/T 31022-2014 GB/T 31022-2014 Active General technique specification for two-dimensional barcode business card 名片二维码通用技术规范 Standard Type GBT ICS 35.040 CCS A24 Status 现行 Issue Date 2014-09-03 Implementation 2015-02-01 Responsible Dept 国家标准委 Drafting Unit N/A