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Galvanized roof
Galvanized become important steel anticorrosion method, not only because the zinc can be formed in the steel surface protective laver of dense,but also because of the zinc has the effect of cathodic protection , when the galvanized layer damaged, it can still through the cathodic corrosion protection to prevent the iron base.
Hot-Dip Galvanized Corrugated Sheet
SGCC Galvanized Roof
