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Novel square bending-flow type muffle
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Acoustic shield capable of quickly lowering internal pressure
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Novel sleeve type sound eliminator
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Counter flow cooling structure of single-stage negative-pressure roots blower
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Novel mounting structure of air blower
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Cooling structure of roots vacuum pump
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Novel silencing exhaust groove
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CN102927059A
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Novel acoustic shield
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CN102931755A
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Temperature reducing belt cover
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Blower-starting valve with filtering device
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CN101813159A
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Gear case matched with middle/high speed centrifugal fan
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