Home / Standards / GB/T 904-1994 GB/T 904-1994 Abolished Railway bridge span series 铁路桥梁跨度系列 Standard Type GBT ICS 93.040 CCS S13 Status 废止 Issue Date 1994-07-19 Implementation 1995-04-01 Responsible Dept 国家铁路局 Drafting Unit N/A