2026-04-02
China Unicom Heilongjiang accelerates construction of 5G network for Haiyi high-speed railway
黑龙江联通加速建设哈伊高铁5G网络
工业和信息化部
miit
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| Publisher | 工业和信息化部 |
| Site | miit |
| Date | 2026-04-02 |
| CMS Category | 文件发布 |