Our steel structure cattle barn adopts a large-span column-free design with a span of 6-25m, providing open space for cattle movement and mechanized feeding operations. Built with hot-dip galvanized steel frame and electrostatic spraying dual anti-corrosion process (zinc coating ≥80μm), it achieves 10-grade wind resistance and excellent snow pressure resistance, with a service life of 15-20 years. The B1-grade fire-retardant design, with steel frames sprayed with fireproof coating, effectively blocks fire spread and fully protects the safety of cattle and forage. Its lightweight modular structure has low foundation requirements, is stable and anti-sedimentation, and is suitable for construction in plains, pastoral areas and other terrains.Equipped with 60-100mm rock wool insulation layer and cross-ventilation system, the barn keeps warm in winter and cool in summer, significantly reducing the incidence of respiratory diseases in cattle. The anti-slip and wear-resistant cement floor is matched with pre-buried sewage ditches, ensuring smooth sewage discharge and easy cleaning, keeping the barn dry and hygienic and reducing the risk of hoof diseases. Reserved interfaces for automatic feeding, drinking and manure cleaning systems support seamless integration of intelligent breeding equipment, greatly saving labor costs. The internal space can be divided into feeding area, resting area and milking area, meeting the breeding needs of different stages such as dairy cow lactation period and beef cattle fattening period.75% of the barn components are prefabricated in the factory, with bolt-spliced installation that can be completed in 30-50 days, shortening the construction period by 50% compared with traditional brick-concrete barns. The lightweight steel structure design reduces transportation costs by 20% and eliminates the need for large hoisting equipment, significantly saving manual construction costs. With low later maintenance cost, the barn is anti-corrosion and anti-rust, avoiding frequent renovation, and reducing long-term use cost by 35% compared with brick-concrete barns. Its detachable and movable design supports position adjustment according to farm planning, with high secondary utilization value, perfectly matching the needs of pasture expansion or relocation.We provide full customization services for the cattle barn: span can be adjusted from 6-25m and eave height from 3-5m, suitable for small family pastures to large-scale cattle breeding bases. Enclosure materials can be selected from color steel plates, FRP tiles and insulation sandwich panels, balancing light transmission, heat insulation and rainproof needs. We support customization of single-building/connected-building design, and can expand supporting functional areas such as forage storage room, veterinary room and milking parlor according to requirements. Small-batch customization is available with a minimum order of 1000 sqm, meeting the flexible construction needs of small and medium-sized enterprises and individual farmers.