Plastic exhaust fans, fresh air ventilators, axial flow fans, high-static electrostatic oil fume purifiers, aluminum alloy single-layer louver air outlets, electric multi-leaf opposed blade regulating dampers, 70°C smoke exhaust fire dampers, 280°C smoke exhaust fire dampers, impedance composite silencers, centrifugal fan boxes

[Tender Notice] Plastic exhaust fans, fresh air ventilators, axial flow fans, high-static electrostatic oil fume purifiers, aluminum alloy single-layer louver air outlets, electric multi-leaf opposed blade regulating dampers, 70°C smoke exhaust fire dampers, 280°C smoke exhaust fire dampers, impedance composite silencers, centrifugal fan boxes Purchasing Unit: Nantong No.4 Construction Group Co., Ltd. Beijing No.6 Installation Branch Region: Huairou District, Beijing Project No.: ZBA26072800283 Budget: CNY 37K Published: 2026-07-31 Bid Deadline: 2026-08-02 Original Notice: https://www.zhucai.com/un_login_view_bid_info?modelId=143542