金融界2024年12月25日消息,国家知识产权局信息显示,马鞍山钢铁股份有限公司申请一项名为“一种新能源汽车驱转子用高强度无取向电工钢及制造方法”的专利,公开号 CN 119177398 A,申请日期为2024年8月。专利摘要显示,本发明涉及无取向电工钢技术领域,具体涉及一种新能源汽车驱转子用高强度无取向电工钢及制造方法,该新能源汽车驱转子用高强度无取向电工钢,包括以下重量百分比的组分:C:0‑...
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