
Seamless Custom Aluminum Spline Round Tube for Welding Structural Assemblies. Integrated Extrusion Molding: Uniform wall thickness with high dimensional tolerance and no secondary welding required. High Torsion Resistance: External gear spline design ensures large contact area and anti-slip torque transmission. Lightweight Aluminum Material: 6063 alloy offers 1/3 weight of steel, effectively reducing equipment load. Anti-Corrosion Surface: Natural anodized finish provides wear resistance and long service life for indoor/outdoor use. Comprehensive Customization: Supports CNC machining, cutting, drilling, and custom mold opening for non-standard profiles. High Annual Output Capacity: 50,000 tons annual output ensures stable delivery for large-scale industrial orders. Multi-Industry Application: Ideal for automation, new energy, medical machinery, and mechanical transmission systems. Professional Seaworthy Packaging: PE film, wooden pallets, and desiccants protect against scratches and deformation during transit.