Home / Standards / GB/T 20851.4-2007 GB/T 20851.4-2007 Abolished Electronic toll collection - Dedicated short range communication - Part 4: Equipment application 电子收费 专用短程通信 第4部分：设备应用 Standard Type GBT ICS 35.200 CCS L65 Status 废止 Issue Date 2007-03-19 Implementation 2007-05-01 Responsible Dept 国家标准委 Drafting Unit 国家标准委