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JPS56113920A
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Water boiler burning waste matter utilizing fire heat of rubber coke
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JPS56115386A
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Carbonization oven utilizing heat of waste tire, followed by preparing rubber coke fuel as by-product
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JPS56113921A
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Burner for waste oil
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JPS5493587A
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Longitudinal shaft horizontal rotary propeller
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JPS5475390A
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Air bubbling type water streaming machine
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JPS5467207A
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Underwater air pump system revolution aeration
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JPS5439948A
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Rotary aeration
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JPS5438674A
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Chimney boiler
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JPS5423846A
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Dish type hydraulic turbine
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JPS5362268A
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Boxxtype water mill
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JPS5358158A
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Rotating and revolving brush cleaner
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