1/2/3pcs 300mm Length Seamless Aluminum Straight Tubing 6063 Aluminum Round Tube 5-15mm Inner Dia 18mm OD Description: 1. 6063 aluminum for high strength, weld-ability, corrosion resistance and long-lasting durability. 2. It can be easily cut and drilled, and can be welded with the right equipment. 3. The interior is smooth with no seam and is available in an extruded structural or a drawn seamless aluminum round tube for precision applications. 4. Commonly used in industrial, automotive, marine and aerospace industry. Great for custom fabrication project such as DIY air intake, frames, boat building, modelers, crafts, gardening products, general fabrications and shop fitting. Specification: Material: 6063 Aluminum Inner Diameter: 5mm, 7mm, 9mm, 10mm, 11mm, 12mm, 14mm, 15mm Outer Diameter: 18mm / 0.71-inch Total Length: 300mm / 11.81-inch Package Content: 1-3pcs x Aluminum Round Tube _x000D_