The 7CX-8T is transported on township, town, and rural roads by large and medium-sized wheeled tractors pulling trailers, which can fully utilize the role of tractors. The fuel consumption rate of tractor trailer transportation is lower or similar to that of automobile transportation on roads with poor road conditions, gravel roads, and dirt roads; On hard roads, it is higher than when transported by car. Surface treatment: Large shot blasting machine for rust removal, changing welding stress, rust removal, deoxidation, rust proof paint, topcoat, and baking paint treatment. Welding process: CO2 tooling welding. Transportation mode: Bulk transportation, box board flexible packaging.