1. The surface of stainless steel adheres to substances containing acids, alkalis and salts (such as alkali water and lime water splashing from decoration walls), which will cause local corrosion.
2. In the air containing pollution (such as the atmosphere containing a large amount of sulfide, carbon oxide, nitrogen oxide), when encountering condensed water, the formation of sulfuric acid, nitric acid, and acetic acid liquid points will cause chemical corrosion.
