
Alkali Resistant Custom Aluminum Spline Round Tube for Gazebo Support Structures. Integrated Extrusion Molding: Uniform wall thickness with high dimensional tolerance and no secondary welding. High Torsion Resistance: External gear spline design ensures strong torque transmission and anti-slip performance. Lightweight Aluminum Material: 6063 alloy offers 1/3 weight of steel, effectively reducing equipment load. Anti-Corrosion Surface: Natural anodized finish provides wear resistance for long indoor and outdoor service life. Deep Processing Support: CNC machining, cutting, drilling, and tapping available according to customer drawings. Versatile Applications: Ideal for automation, mechanical transmission, new energy, and medical precision machinery. Comprehensive Certifications: ISO9001, CE, and RoHS compliant for international market access and smooth customs clearance. High Annual Output: 50,000 tons annual capacity ensures stable delivery for standard and big orders.