· JJG 745—2016 7258 GB/T 13306 GB 21861 3.1 center of far light 10 52.4 cm 52. 4 cm 17. cm 17....
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· JJG 745—2016 7258 GB/T 13306 GB 21861 3.1 center of far light 10 52.4 cm 52. 4 cm 17. cm 17. cm 3. 2 reference center height of headlamp 3.3 detection distance