Group 1 - The company Wenzhou Hongfeng announced that its subsidiary, Zhejiang Hongfeng Copper Foil Co., Ltd., has received a utility model patent certificate from the National Intellectual Property Administration [2] - The patent is titled "A Servo Adjustment Device for Preventing Liquid from Adhering to the Surface of Copper Foil" [2]

Core Viewpoint - Wenzhou Hongfeng (300283) announced the receipt of a utility model patent certificate from the National Intellectual Property Administration for a device designed to prevent liquid from adhering to the surface of copper foil [1] Company Summary - The patent is titled "A Servo Adjustment Device for Preventing Liquid from Adhering to the Surface of Copper Foil" [1]