Recently, Zhejiang Tongzheng Electric Co., Ltd. announced that it has completed the reissuance of the CE certificates for its surge protectors device(SPD). The new certificates are based on the latest EU regulations and EN standards, marking the comp...
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Recently, Zhejiang Tongzheng Electric Co., Ltd. announced that its surge protection device (SPD) products have officially passed the RoHS (Restriction of Hazardous Substances) test by the European Union. This marks that the company has reached a new ...
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In July 2024, Zhejiang Tongzheng Electrical Co., Ltd. successfully obtained the patent "A Protective Switch" (Publication Number: CN221407203U) from the China National Intellectual Property Administration. This utility model provides a protective swi...
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Hot News2025-03-20
2025-03-18
2024-07-01
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