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Quality management system certification（Engineering）
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Quality management system certification（Equipment ）
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Gold Award for the Second APEC Small and Medium Enterprise Technology Competition Exhibition
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Membership card
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Yantai university internship base construction agreement
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refrigeration and air conditioning industry association governing unit
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Top 10 advanced enterprise project quality of tax payment China
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Top 10 engineering quality
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The fifth shandong province management innovation advanced enterpri Tax payment advanced enterprise
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Yantai university practice teaching base
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AAA credit enterprises
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Yantai small and medium-sized credit enterprises
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