中华人民共和国铁路行业标准 (Railway Industry Standards)ChinaAuthority: 58
TB/T 2331
Railway ballasted track — Under ballast mats
Industry
Railway
Product Family
Ballast Mat
Keywords
["铁路","道砟垫","railway","ballast","mat"]
Railway ballasted track — Under ballast mats
Railway
Ballast Mat
["铁路","道砟垫","railway","ballast","mat"]