The butterfly valve has a valve body of homogeneous material into the sealing ring, usi
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I plant production of ventilation butterfly valve USES the steel plate welding, a short structure size, light weight,
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Product features: This pneumatic butterfly valve, is my factory special design based on&nbs
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Pneumatic butterfly valve is a valve and actuator, the actuator is rotated 90 degr
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The structure characteristics and uses: The valve is closed design structure, the valve bod
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