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CQC-JD

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UL

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VDE-X2

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KC-JY

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Enec-JD

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IEC--JY

TUV

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Ratio certificatorium

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ISO 9001 2015

IOS9001

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IOS14001

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ISO 14001 2015

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LOA of Polytech International INC.

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LOA of Yingdian (Shanghai) Supple Catenam Co., Ltd.