ISO9001 HVAC Fire Dampers 0.7A Automatic Dampers In Ductwork
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Fire Damper Features 1. Using galvanized steel as material to make sure good insulation performance, fire & corrosion resistance. 2. Duration, long service life. 3. Easy installation. 4. The flange is bended directly by the frame. 5. The valve size and ......
Henan Shuangxin Fire Environmental Protection Equipment Manufacturing Co., Ltd.
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