Coated aluminum - aluminum scrap cooked characterized as follows: 1, color white, surface section was silvery white; 2, soft and tough, with a sharp iron can be deep drawn aluminum surface marks, hand twisted easy to bend, inelastic, generally three or more times repeated bending will break, the cross section is high in the middle, both sides of the lower edge of the fracture how Tao crack injuries, delicate tissue sections; 3, lightweight aluminum is one of the features, it is more than copper, lead, tin and other non-ferrous metals are lighter than twice. No percussion sound shrill, lingering briefly. |