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Structure features and use: theTilt butterfly valveThe valve body, valve plate is made of high quality carbon steel pla
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Rectangular damper is also known as air door, uniaxial and biaxial and triaxial, four axis, and five axis as five types,
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Handle ventilation butterfly valve to the clamp
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D641w - 1 c pneumatic ventilation butterfly valve is a kind of closed type butterfly valve, widely used in building mate
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Aerodynamic fin heat air door
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