辰致科技取得新能源汽车B柱下封板与门槛梁的连接结构专利,提高生产线的整体效率 | #辰致 #科技 #取得 #新能源 #汽车 #柱下 #封板 #门槛 #连接结构 #专利 #提高 #生产线 #整体 #效率
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