在上海市外环路以外,集装箱半挂车、自卸车、危险品运输车、各类特种改装车络绎不绝的场景随处可见。位于上海市东南部的洋山港、东北部的钢铁厂及集装箱物流中心,以及西南部的大型化工企业群,成为上海重卡市场的主 Outside the outer ring road in Shanghai, container semi-trailers, dump trucks, dangerous goods transport vehicles, all kinds of special modified cars flocked to the scene can be seen everywhere. Located in the southeast of Shanghai Yangshan Port, the northeast steel plant and container logistics center, as well as large-scale chemical enterprises in the southwest group, a heavy truck market in Shanghai the main