Depending on the metal elements containing aluminum, aluminum can be divided into nine categories, that is, can be divided into nine series, following step by step outline the five 5000 series represents 5052.5005.5083.5A05 series. In our 5000 series aluminum is one of the more mature series aluminum. Six, 6000 6061 Series represents the main two elements containing magnesium and silicon, it is focused on the 4000 Series and 5000 Series Benefits 6061, a cold finished aluminum wrought products. 1, the working area is too large, the operation is too large swings in the slot, with a touch of edge and center solution Shandong aluminum manufacturers, updating exchange a big difference, then the color of the oxide film produced inconsistent approach to prevention: Oxidation workpiece swing and downs of small, quiet disposition aluminum can factory Which is good, but when the solution temperature is too prone to map-like piebald, seem unnatural. 2, aluminum coil coating process layer is damaged portion is cut off, quality aluminum aluminum outer wear, inner layer is a hybrid aluminum, due to the difference between the larger, and therefore will have a "vitiligo" 3 like spots after oxidation, the process operation problem: the disposal of the workpiece alkali etching is incomplete, the original portion of the oxidation film, dirt is not divisible; disposed of immediately after alkaline etching light on the surface is still alkaline; workpiece in the transfer process of contacting foreign body aluminum factory in Jinan | cis Alcoa (certified) | aluminum rolls by the Aluminum Co. of Jinan. available. 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.