Podloga za unaprijed obojeni pocinčani čelični kolut

Hladno valjani čelični kolut

Color rolled steel coil—— the substrate for Prethodno obojana zavojnica od pocinčanog čelika. S glatkim i lijepim izgledom hladno{0}}valjanog čeličnog koluta. Ali sve manje ogrebotine na površinskom premazu izložit će hladno-valjanu podlogu zraku, brzo izlažući željezo stvaranju hrđe. Stoga se može koristiti samo za mjere privremene izolacije i unutarnje materijale s niskim zahtjevima.

Vruće pocinčani čelični kolut

Hot-dip galvanized color-coated sheet has the protective effect of zinc. However, the surface's organic coating can also be insulation and protection, preventing rust, and the service life is longer than that of hot-dipped galvanized sheets.

Galvalume čelični svitak

The composition of galvalume steel coil is 53 percent aluminum, 43.5 percent zinc, and 1.5 percent silicon, named  55 percent Al-Zn. According to the data, the comprehensive anti-corrosion ability of 55 percent aluzinc is four times that of galvanized with the same thickness.