Home / Standards / GB/T 18731-2002 GB/T 18731-2002 Abolished Rules for locating highway of trunk 干线公路定位规则 Standard Type GBT ICS 03.220.20 CCS R07 Status 废止 Issue Date 2002-05-30 Implementation 2002-12-01 Responsible Dept 交通运输部 Drafting Unit N/A