Unified Negotiation and Unified Signing + Luoyang Ship Material Research Institute (China State Shipbuilding Corporation Limited 725th Research Institute) + Inquiry Document for Annual Framework of Aluminum Alloy Finned Tubes

[Tender Notice] Unified Negotiation and Unified Signing + Luoyang Ship Material Research Institute (China State Shipbuilding Corporation Limited 725th Research Institute) + Inquiry Document for Annual Framework of Aluminum Alloy Finned Tubes Purchasing Unit: China Shipbuilding Group Materials Co., Ltd. Region: Xicheng District, Beijing Project No.: 11210180130-JSTJ-01-D Published: 2026-08-10 Bid Deadline: 2026-08-12