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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB 146.2-2020 |
Gauge for standard gauge railways—Part 2: Structure gauge 标准轨距铁路限界 第2部分：建筑限界 |
China National Standards Structure gauge standard |
 English PDF |
| GB 146.2-1983 |
Structure gauge for standard gauge railways 标准轨距铁路建筑限界 |
China National Standards Structure gauge standard |
English PDF |
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