
T6 Temper Seamless Custom Aluminum Spline Round Tube for Railing Post Production. Integrated Extrusion Molding: Uniform wall thickness with high dimensional tolerance and no secondary welding. External Gear Spline Design: Large contact area providing strong torsion resistance and anti-slip torque transmission. Lightweight Aluminum Material: 6063 alloy is 1/3 the weight of steel, effectively reducing equipment load. Natural Anodized Surface: Anti-corrosion, anti-oxidation, and wear-resistant finish suitable for indoor and outdoor use. Deep Processing Support: Available for cutting, drilling, tapping, CNC turning, and threading based on customer drawings. High Annual Output Capacity: 50,000 tons annual output capability to handle standard and custom big orders. Comprehensive Certifications: ISO9001, CE, and RoHS compliant for smooth international customs clearance. Flexible Customization Options: Supports full customization, minor customization, and mold opening for non-standard profiles.