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Beijing "specialized and innovative" small and medium-sized enterprises
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National High-tech Enterprise Certificate
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Business License
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Zhongguancun High-tech Enterprise Certificate
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Qualification credit rating certificate
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National supervision and inspection of stable product quality qualified enterprises
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Beijing New Technology and New Product Certificate
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Tier 1 Supplier of Sinopec
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Tier 1 Supplier of CNOOC
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Tier 1 Supplier of CNPC
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Member of China Instrument Association
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Membership Certificate of Metallurgical Branch of China Metrology Association
