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A kind of non-woven fabrics water tank with strainer
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A kind of hydraulic system
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A kind of dirt collection blowdown apparatus
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A kind of water tank blowdown apparatus
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River water fetching device
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A kind of self-cleaning rough filtering device
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Pipe couplings
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A kind of axle sealing structure
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A kind of bushing pipe anti-dropout method
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A kind of restorative procedure of backbone sealing ring
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