I can't. According to the relevant public information, high-hurdle trucks cannot be changed. You must first apply to the traffic police vehicle management office, and after obtaining approval, you can make changes as required. Besides, this is a modification. If it doesn't meet the announcement, it won't pass the trial, so the van hurdle can't be enlarged. The structure of the truck loading part is a truck with fenders, and some have automatic dumping devices. A truck with a special structure for transporting special goods.