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Patent Certificate for Invention
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High-tech Enterprise Certificate
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Utility Model Patent Certificate
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IATF 16949:2016 Certificate
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Occupational Health Technical Service Institution Qualification
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Simple Screw Self-locking Structure Patent
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Connecting Nut for Repeated Disassembly Screws
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Riveting Structure of Nut and Thin Plate
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Embedded Expansion Nut Patent
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ISO45001:2018 Certificate
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Laboratory Accreditation Certificate
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BYD Third-party Laboratory Accreditation


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