The core principles are “cleanliness and contamination prevention + passive film protection + environmental adaptation”: 1. Regular cleaning Frequency: indoor environments every 1-3 months; marine, humid, or industrial areas every 1 month; s...

The protective film thickness does not directly affect the steel plate’s core properties such as strength, hardness, or corrosion resistance. Key points: The film only protects the surface and does not chemically react with the substrate or alter ...