Defu Technology: Self-developed 3um ultra-thin carrier copper foil and other products have been stably supplied in bulk
On the 17th, Defu Technology stated in response to investor inquiries on the interactive platform that the company's independently developed 3um ultra-thin carrier copper foil, RTF1-3 generation copper foil, and HVLP1-3 generation copper foil have all been stably supplied in bulk, achieving domestic substitution of these products
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