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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| TB/T 2920.2-2008 |
Portal structure for overhead contact system of electrified railway. Part 2: Steel tube portal structure 电气化铁路接触网硬横跨 第2部分 钢管硬横跨 |
China Railway & Train
Standards Portal structure overhead |
 English PDF |
| TB/T 2920.1-2008 |
Portal structure for overhead contact system of electrified railway. Part 1: Lattice steel portal structure 电气化铁路接触网硬横跨 第1部分 结构式硬横跨 |
China Railway & Train
Standards Portal structure overhead |
English PDF |
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