The anti-corrosion measures for coated aluminium coils are as follows:
② Strengthen the management of rolling oil, and control its water content below 400X10-6.
④ The humidity of the wooden shaft and box board of the packaging box is not more than 18%, and the temperature of the packaged aluminum coil is not more than 45 degree .
⑤ Do not open the sealed package immediately when transporting from a low-temperature area to an area with high temperature and high humidity.