... general structure 6063 ,High plasticity alloy, it is effectual to oxidize,the ideal alloy of the building material.6005 , ... Medium-sized intensity alloy, performance close to 6A02, but its surface better than 02 6A relatively. it ... design requirements. 2.Alloy state6063T5, 6063 Alloy with high plasticity, easy to process , oxidize effectual, it is first-selected alloy variety. ...