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•  Yongning Company believes that forging trademarks is a serious infringement. Only the products with the real EV-ER brand Yongning trademark are the products produced by Yongning Company. They not only have the full picture of the product label, but also have a unique product safety number as the product safety sign of the company. There is a unique bar code and stereo photography attached to any Yongning product as our company's product safety features. If users want to verify the authenticity of Yongning trademark products, they can enter the 13-bit serial number under the bar code.