Certification

AOK has been certified by IATF16949:2016, ISO9001:2015, ISO14001:2015, and ISO45001:2018. We keep improving our facilities and skills to provide high-quality products, such as valve stem seals and bonded seals, and good services to our customers.

IATF16949

IATF 16949:2016

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ISO 45001:2018

ISO9001

 ISO 9001:2015

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ISO 14001:2015

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2025 DUNS