PATENT
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A practical model patent certificate for a material falling, shock-absorbing and bulletproof device of a straightening machine
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A device for pushing materials in a drawing machine - utility model patent certificate
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A Adjustable Angle Drawing Machine Feed Rack - Utility Model Patent Certificate
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A Double Chain Cold Drawing Machine - Utility Model Patent Certificate
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A utility model patent certificate for a straight shot blasting machine material dropping device
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A utility model patent certificate for a feeding device of a straight shot blasting machine
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A Drawing Machine Feed Device - Utility Model Patent Certificate
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A utility model patent certificate for a feeding device of a through type straight shot blasting machine
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A Sortable Feeding Rack for a Circle Leveling Machine - Utility Model Patent Certificate
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A Device for Horizontal Pushing of Drawing Machine - Utility Model Patent Certificate
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