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Rectangular damper is also known as air door, the introduction of CE technology production. Mainly used for thermal p
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Rectangular damper is also known as air door, the introduction of CE technology production. Mainly used for thermal p
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USES: Electric shutter butterfly valve with electric actuators are widely used in building material, metallurgy, mining
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Single shaft side throttle the factory specializing in the production Standard: DD4201 ~ DD4212 * 1000 300 * 400 ~ 300
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