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河北欧通取得种梯形钛合金棒材的加工方法专利
金融界 2025 年 4 月 4 日消息,国家知识产权局信息显示,河北欧通有色金属制品有限公司取得一项名为“种梯形钛合金棒材的加工方法”的专利,授权公告号 CN 119216405 B,申请日期为 2024 年 11 月。
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