Made of 6063 aluminum alloy, lightweight and rigid, easy to cut, drill and polish for structural DIY processing. Large outer diameter range from 21mm/22mm, straight round pipe with uniform wall thickness. Available finished lengths include 300mm and 500mm to match different production demands. Precision extruded straight tube with smooth burr-free inner and outer surfaces for convenient secondary machining. Sturdy aluminum tubing suitable for support frames, model brackets and industrial fixture accessories., Manufacturer: KAPQIN