This 41.8-cubic-meter three-axle aluminum alloy oil tank semi-trailer body is tailor-made for refined oil transportation, hazardous chemical liquid haulage and long-distance logistics oil tank trucks. It features a lightweight and high-strength tank structure with superior load capacity and full regulatory compliance.The tank is integrally formed with aviation-grade aluminum alloy plates, and its inner wall undergoes special anti-corrosion passivation treatment, delivering acid and alkali resistance, oil contamination resistance, tight sealing and leakage prevention. Boasting a light overall weight, rust resistance and long service life, it effectively increases cargo volume and operational profits. Widely applicable to the transportation of various oil products such as gasoline and diesel, it serves as high-efficiency and durable premium transportation equipment for the energy transportation and petrochemical logistics industries. Highlights: Material: National standard aluminum alloy 5083 / high-quality carbon steel (316L stainless steel optional for highly corrosive chemical scenarios) Finish: Internal and external polishing & passivation, inner wall anti-oil and anti-corrosion treatment Capacity: 41,800 Liters (41.8 Cubic Meters / 11,045 US Gallons) Tank Structure: Horizontal cylindrical tank with multiple reinforced anti-surge baffles, fully automatic welding process, 100% pressure and air tightness tested Compatibility: Universal fit for 3-axle semi-trailer chassis, compatible with all mainstream tractor brands (Dongfeng, Sinotruk, FAW Jiefang, Foton, etc.) Insulation: Standard with emergency shut-off valve, static grounding device, overfill prevention probe, fully compliant with dangerous goods transportation regulations