---
title: "Defu Technology: The company's independently developed 3um ultra-thin carrier copper foil and others have been stably supplied in bulk"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/261806193.md"
description: "On October 20th, Defu Technology stated 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 for these products"
datetime: "2025-10-20T03:41:51.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/261806193.md)
  - [en](https://longbridge.com/en/news/261806193.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/261806193.md)
---

# Defu Technology: The company's independently developed 3um ultra-thin carrier copper foil and others have been stably supplied in bulk

On October 20th, Defu Technology stated 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 achieved stable mass supply, realizing domestic substitution of these products

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