Roof sheet, also known as profiled steel roof tile, is a profiled plate made of color steel sheet or galvanized steel sheet or galvalume steel sheet, which is rolled and cold bent into various wave shapes.

Cold Rolled materials are HRP&O coils that have been cold reduced and annealed.

Hot rolled steel is the most basic carbon steel product mills produce. It is used to manufacture products in which the surface finish is not critical, including automotive, truck frames, water heaters, agriculture equipment, compressor shells, guard rails and the list goes on.

A galvanized sheet is a sheet that has undergone a hot-dip process that coats the sheet with 100% zinc, which can prevent the surface of thin steel plate and steel strip from corroding and rusting.

Steel is an alloy of iron and carbon, whose special properties are hardness and elasticity. It is a material of great industrial importance, because it is used in the manufacture of metallic structures, tools and machinery.

Galvalume steel refers to 55% Al-Zn coated sheet steel product, which is well suited for roofing and siding applications, as well as automotive, home appliances, furniture, etc.