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China gravel association director unit

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Chongqing sand association vice president unit

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Utility model Patent Certificate (new jaw breaking machine spring pull rod adjusting mechanism)

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Utility model Patent Certificate (vertical shaft type sand making machine feeding adjustment device)

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Utility model patent Certificate (vertical shaft type sand machine impeller)

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Utility model Patent Certificate (high fine broken spindle sealing structure)

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ISO9001 quality management system certification

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Science and technology achievement award

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The utility model relates to a high fine crusher hammer mounting structure

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The utility model relates to a side swing plate protection plate of a hammer crusher

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The utility model relates to a spindle structure of hammer crusher

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The utility model relates to a spindle structure of hammer crusher

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The utility model relates to a vertical shaft impact broken observation door

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The utility model relates to a bearing sealing structure of a new type of jaw breaker

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The utility model relates to a new type of adjusting structure of discharge opening of jaw breaker

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The invention relates to a sealing device for a vibrating screen shaft

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The invention relates to a new type of three - sided upper chamber counterattack

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Utility patent certificate of counterattack crusher

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实用新型专利证书（高细破锤头调节锁）

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Utility model Patent Certificate (Crawler Mobile Crushing Return conveyor)

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Utility model patent certificate (counterattack hammer breaker)