manual air damper
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Manual Air Butterfly Dampers
1. The Manual Air Butterfly Dampers is reasonable in design, light in weight and quick in opening and closing. 2. The Manual Air Butterfly Dampers has the advantages of small operating torque, convenient operation and labor saving. 3. Suitable materials are used to meet the requirements of low, medium and high medium temperature and corrosive medium. 4. No connecting rod, bolt inside, reliable operation and long service life
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