Визначення сталевої сталі сталі сталі

Weathering steel channel steel is a kind of steel with high strength, high corrosion resistance and weather resistance. It is mainly composed of iron, chromium, nickel, copper and other elements, in which certain phosphorus, silicon and other elements are added, which can form a dense oxide surface layer, so that it has good corrosion resistance and weather resistance in extreme environments such as atmosphere and Морська вода .