As long as the production from the galvanized steel grating, the depositories of the two links do. Generally prevent galvanized steel grating white rust generated.

Steel grating production using surface treatment. The galvanized steel grating immersed in chromic acid solution, so that the formation of zinc surface activity of the thin film method. Even if this kind of chromic acid film is slightly broken, the chromate near the breach will be dissolved in the water to melt to the breach site, forming a new film again, which can effectively prevent the generation of white rust. Grease the galvanized steel grating to prevent direct air and zinc contact. Here to note that, if you want to paint before you must first wipe the surface of the steel grating oil, if the galvanized steel grating will be used for painting, you can give the phosphate coating treatment. Phosphate will be firmly attached to the galvanized steel grating surface, the formation of loose porous, coating can provide a good foothold, and get a strong attachment. The galvanized steel grids should be stored in a well-ventilated area or protected against dew formation by using dryers or dryers in high humidity and warm / cold periods. Be careful not to be soaked in water and wet, such as dew or water soaked to deal with dry, you can also open the package, the use of fans and other air supply to dry.