China Railway Shanghai Group Co., Ltd. Shanghai Railway Engineering Equipment Technology Co., Ltd. Procurement Announcement for Grinding Stone Raw Materials (Chalcopyrite, Chromite)

[Tender Notice] China Railway Shanghai Group Co., Ltd. Shanghai Railway Engineering Equipment Technology Co., Ltd. Procurement Announcement for Grinding Stone Raw Materials (Chalcopyrite, Chromite) Purchasing Unit: Shanghai Railway Engineering Equipment Technology Co., Ltd. Region: Jiading District, Shanghai Project No.: 2026-SH-WZ-STGWJK-2026-011 Published: 2026-08-18 Document Deadline: 2026-08-22 Bid Deadline: 2026-08-24 Bid Opening: 2026-08-24