This general cargo semi-trailer tank truck is specially customized for the transportation of non-hazardous conventional liquids, civil liquid transshipment and long-distance general cargo logistics. The tank body is made of high-quality carbon steel as the main material, featuring a sturdy structure, reasonable dead weight and excellent pressure resistance, which fully complies with the regulatory standards for road transportation of general cargo. Adopting an integral forming process, the tank is tightly sealed and leak-proof with no anti-corrosion lining (upgradable on demand), making it suitable for transporting various non-corrosive ordinary liquids. The whole vehicle is rust-resistant, durable and efficient in loading and unloading, effectively increasing transportation volume and operational benefits. It is widely used for the transshipment of non-hazardous liquids such as drinking water, purified water, edible oil, food-grade liquids, daily chemical liquids and common lubricants, serving as an efficient, cost-effective and practical professional transportation equipment in the fields of civil liquid delivery and general cargo logistics.   Highlights: Material: High-quality standard Q345B carbon steel (mainstream standard configuration). Aluminum alloy and stainless steel materials are available for upgrade on demand to meet the transportation needs of various conventional liquids. Surface Treatment: Outer wall treated with sandblasting and rust removal, anti-corrosion primer and customized topcoat; inner wall polished smooth without extra coatings, suitable for food-grade and civil liquid transportation. Volume: Multiple customizable specifications, with the common range from 34 to 45 cubic meters (mainstream 40 cubic meters / 40,000 liters). It supports 1 to 4 compartment partition design for separate loading of different conventional liquids. Tank Structure: Horizontal cylindrical or elliptical tank body with 5 to 8 sets of built-in anti-wave baffles. Adopting fully automatic seamless welding, all tanks have passed pressure resistance and air tightness tests with zero leakage risks. Compatibility: Equipped with standard three-axle semi-trailer chassis structure, with 50# and 90# traction pins optional. Compatible with all mainstream tractor brands including FAW, SINOTRUK, Dongfeng, SHACMAN and Foton. Safety Configuration: Standard equipped with dual-circuit air brake, ABS anti-lock braking system, side and rear protection, and reflective warning signs. Non-slip platforms and safety guardrails are optional, fully complying with general cargo transportation regulations.