1, the working area is too large, the operation is too large swings in the slot, with the edge and center of the touch of a solution, there is a big difference to update the exchange, then the color of the oxide film produced inconsistent prevention approach: oxidation of the workpiece rotation small ups and downs, you can quiet disposition corrosion dedicated board manufacturer, 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, outside wearing quality aluminum alloy, the inner layer is hetero-specific corrosion aluminum plate prices, 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 alloy within a crop note, cutting bevel 1 °, 1m length tolerance within 0.5. Surface corrosion problems mm or less dedicated board, 1m less than 1mm shorter ends of packaging material wrapped around the film, a long tube with a metal frame fitted between the pad of paper (three) or three-point package. 2, cutting scratches bumps and other points Rework need to pick 3, cutting deformation, distortion and straighten deformed after retirement need to pick four, if customers have special requirements for length and packaging 5 basis having to customer requirements, packaging must be cut to facilitate customer handling guidelines corrosion dedicated board, supply corrosion dedicated board price, rolls Aluminum (certified merchants) provided by Jinan Heshun Aluminium Limited. Jinan Heshun Aluminum Co. (www.jnhsly.com) in the field of aluminum products devoted boundless enthusiasm and passion, rolls Alcoa has been customer-centric, for customers to create the concept of value, quality and service to win market share sincerely hope to cooperate with the community to create success, create brilliant. Welcome to the relevant business information, Contact: Zhang.