保险杠为什么要填泡沫
[{"content":"[_LinkTopic:提问打卡·不止64倍车币奖励,47564,37]\n 听说保险杠内部空隙都会用泡沫填充,这是为了减轻车子重量吗?感觉会不会不结实。","height":0,"order":1,"type":1,"width":0},{"content":"https://img3.baa.bitautotech.com/img/V2img3.baa.bitautotech.com/dzusergroupFiles/2022/01/17/fcf3355425954fc0bfd640a019dd87b9_800_0_max_jpg.jpg","height":872,"note":"","order":2,"path":"/2022/01/17/fcf3355425954fc0bfd640a019dd87b9.jpg","type":2,"width":1920}]