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Wenzhou, China
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EMC Certificate — Multimeter (61326)
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2020301730277 – design patent certificate (stamped)
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A multi-purpose electrician repair tool_EW911 utility model patent details
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2020301730277 – certificate (VD12 design patent (1)
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Wenzhou Zhengyuan Electronics – 2024305504714 test pen (1) – design patent certificate (1)
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CE — EU Battery Directive (CN)
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MSDS — Carbon-Zinc AAA Battery (Huadao)
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A cable stripping recovery device (utility model purchased)
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2021307398913 – Design patent certificate (stamped) (3)
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Wenzhou Zhengyuan Electronics – 2023228104788 clip-type induction color test pen – Niu Chunjiu – 20240618 – utility model patent certificate (1)
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301 utility model patent
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Wenzhou Zhengyuan Electronics – 2023306744585 clip-type induction color test pen – Niu Chunjiu – 20240507 – design patent certificate (1)
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