汽车及挂车外部照明和光信号装置的安装规定 (GB 4785-2019 1~7) Prescription for installation of the external lighting and light-signalling devicesfor motor vehicles and their trailers 代替GB 4785-2007 发布时间: 2019-12-17 实施时间: 2020-07-01 阅读数量: (263) 标准分类: T 车辆