Our company produce the magnesium alloy and aluminium alloy tubes by extrusion method. The max. Od can be 600mm, max. Thickness can be 125mm; max. Size for the flat bar is 920x160mm; max. Size for u-shape is 800x300mm; max. Size for rectangular is 700x200mm; max. Size for square tube is 430x430mm; max. Length is 30meters/each. Looking forward to enquiries.