One is anodized, and the other is electrostatic spraying. Anodized oxide film is generally more than 12μ, bronze and white color only, drab colors, more serious drawback is that every piece of aluminum plate surface color shades, many block wall panels together to form the overall effect of a curtain wall Very ugly. This disadvantage can not be eliminated, said the supply of magnesium alloy aluminum prices, not production techniques cause, but because the cell current density and other factors when liquid aluminum is not by a group number, chemical composition, have a small difference, plus both oxidation can not be exactly the same, so the colors were different number after oxidation, leaflets see may not be obvious, if all row together that very clear. Therefore, aluminum curtain wall aluminum surface treatment, and never can be anodized. Identification of aluminum quality approach: Flexibility and strength aluminum comparative identification method is simple: take a Lvkou hand bend his direct manufacturers of aluminum magnesium alloy, not aluminum can easily be bent, but not restore the original shape supply magnesium aluminum alloy, and aluminum to be good you need to spend some effort to bend, and after bending, will rebound to a certain extent, this is the difference between toughness and strength of aluminum. Nice aluminum case does not appear after installing bend or fall in the middle, to ensure smooth. Supply of magnesium alloy aluminum prices, rolls aluminum, magnesium alloy aluminum sheet provided by the Aluminum Co., Ltd. Jinan rolls. Jinan Heshun Aluminum Co. (www.jnhsly.com) Shandong Jinan, aluminum products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Aluminum leadership in cis with the staff warmly welcome all inquiries negotiations to create a better future for aluminum rolls.