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                “一◥种带密封圈的球轴承”发明专利获〖公开

                发布时间:2015/7/8 | 阅读次数:1767次

                  国家知识产权局公开了一◥件由安徽利ㄨ达汽车轴承制造有限公司申报的发明专利“一种带密封圈的球轴♀承”。据称,该发明密封效ぷ果好,轴承使用寿命长,且安装较容易。