Ozone (by atmosphere or most likely by electrical Ozone generators like electrical engines, etc,..) High temperature Too small bend radius Improper cleaning detergents Contact to chem. Substances Contact to rust
External Influence on cover like:Ozone (by atmosphere or most likely by electrical Ozone generators like electrical engines, etc,..)High temperatureToo small bend radiusImproper cleaning detergentsContact to chem. SubstancesContact to rust
Influence on external like Cover: Ozone (Most likely by atmosphere or by Ozone generators like Electrical Electrical engines, etc, ..) High Temperature Too Small Bend RADIUS Improper Cleaning detergents to Contact chem. Substances to Contact Rust