中华人民共和国铁路行业标准 (Railway Industry Standards)ChinaAuthority: 58
TB/T 2923
Technical specification for rail welded joints
Industry
Railway
Product Family
General Railway
Keywords
["铁路","焊接","railway","weld","joint"]
Technical specification for rail welded joints
Railway
General Railway
["铁路","焊接","railway","weld","joint"]