金融界2025年5月17日消息,国家知识产权局信息显示,中国重汽集团成都王牌商用车有限公司申请一项名为“一种锻造带限位功能车门铰链”的专利,公开号CN119981565A,申请日期为2025年3月。专利摘要显示,本发明公开了一种锻造带限位功能车门铰链,包括:支座形成有安装铰链轴的支座通孔及与侧围钣金相安装的支座安装孔;支座通孔设置有铰链衬套,铰链轴一端插设于铰链衬套内,并与第二紧固螺栓相连接;铰链...
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