【Premium Material 】： Made of high-purity T2 copper material, with excellent ductility and conductivity. It will not corrode and has a smooth surface without joints. - Disc Material: T2 Copper. 【Thickened Copper Plate】：This copper plate is 0.3-1.5mm thick, the thickened size makes the copper plate stronger and can withstand many forms of processing such as hot and cold.
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