H4. When exposed to pollution from salt in the air in coastal areas; 5. When contaminated by cleaning agents; 6. When contaminated by fingerprints, fingerprints, etc. 7. When contaminated by surface protection film;owever, regular maintenance can completely prevent surface rust in daily use.
I. Causes of rust and pollution on stainless steel
1. When dust such as sand and iron powder is present on the construction site or in the surrounding area and adheres to the surface due to wind;
2. When exposed to harmful substances such as sulfur dioxide gas contained in emissions from vehicles and other sources;
3. When exposed to corrosive gases produced in areas with hot springs or garbage incineration;
4. When exposed to pollution from salt in the air in coastal areas;
5. When contaminated by cleaning agents;
6. When contaminated by fingerprints, fingerprints, etc.
7. When contaminated by surface protection film;