RAILWAY ENGINEERING RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCE
RAILWAY ENGINEERING RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCE Patent applications | ||
Patent application number | Title | Published |
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20130264394 | PRE-STRESSED CONCRETE TRACK SLAB OF SLAB-TYPE BALLAST-LESS TRACK - Provided in the disclosure is a pre-stressed concrete track slab of slab-type ballast-less track, which includes a slab body ( | 10-10-2013 |