Aluminum Pipe 1.Alloys 6061 or 6063. 2.Temper of T3-T5. 3.ISO Certification 4.competitive price&lead-time. Our company use extrusion machine to extrude any shape of aluminium profile as your drawing. Then in the finishing workshop we do cutting, tapping,polishing, milling, drilling, anodizing, power coating, electroplating, electrophoresis, fluorine carbon spraying,Welcome to make orders!!! ...