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　　In order to improve the corrosion resistance of galvanized gteel hollow sections, galvanizing is applied to general galvanized gteel hollow sections. Galvanized gteel hollow sections has two kinds of obvious drop, hot galvanizing and galvanizing. The hot galvanizing and galvanizing layer is thick, the galvanizing cost is low, and the surface is not very smooth. Oxygen-blowing welded pipe: used as oxygen-blowing pipe for steelmaking, generally with small-caliber welded galvanized gteel hollow sections, specifications from 3/8-2 inch eight. In order to prevent corrosion of galvanized gteel hollow sections, some seamless steel oil casing pipe made of 08, 10, 15, 20 or 195-Q235 steel strip must be effectively aluminized.

　　In fact, in order to prevent BS1387 75x75 ERW Galvanized Steel Hollow Sections from rusting, we must first ensure that the surface and environment of galvanized gteel hollow sectionsis clean, otherwise it is easy to be corroded and produce chemical reaction. When removing rust, we can also use pickling method to remove rust. Generally, many workers use chemical principles and electrolytic methods to remove rust. But if chemical reactions are used to remove rust, workers should wear protective articles before cleaning to avoid injuries caused by chemical elements. But now many places do not agree with the use of chemical acid to clean galvanized gteel hollow sections, because although the effect of chemical acid cleaning is very good, but chemical acid will also affect the environment, and even affect the quality of soil.

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