Correction Announcement for Gas Fire Extinguishing System Pipeline Network Integration Project of Shanghai Metro Line 21 Phase I and Line 21 Phase I East Extension Project
变更公告 上海 2025/04/15
Correction Announcement for FAS System Integration (including Gas Extinguishing Control) Project of Shanghai Metro Line 21 Phase I and Line 21 Phase I East Extension Project
变更公告 上海 2025/04/15