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Automatic motor-free domestic wastewater reusing device
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WO2012000155A1
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Automatic spray washing system for water closet using sanitary wastewater
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All-functional separated-control low-carbon water nozzle
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Chinese-character input method using number of radicals and strokes
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Secret note wooden box
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Roller bearing retainer and the same bearing
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Ball bearing
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Ball bearing and its assembling method
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Sub-sealing-ring of pressure cooker
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Angle-contact ball bearing
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Angular contact ball bearing
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Angle-contacting ball bearing
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Angular contact ball bearing
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Sealing rubber ring of pressure cooker and pressure cooker
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Double-cover rotating bell of bicycle
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Lunch box
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Sealing rubber ring of pressure cooker and pressure cooker
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Bicycle lock of spring padlock type
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Bicycle lock
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Bicycle
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