Al-Mg-Mn Alloy Sheet for building ,The corrugated steel sheet is made by cold-rolled steel plate, electro-galvanized steel plate, hot-dip galvanized steel plate or galvanized steel plate as substrate after surface degreasing, phosphating, chromate treatment, and coated with organic coating. .
Zero Regular Spangle Hot Dipped Zinc Coated Galvanized Corrugated Steel Roofing Sheet YX18-63.5-825 Type Steel Galvanized Corrugated Steel/Tile Metal Sheet with Low Price