Cold-rolled steel coils are made from hot-rolled coils and rolled below the recrystallization temperature at room temperature. Cold-rolled steel coils are steel coils produced through a cold rolling process.

Galvanized steel sheet is covered with aluminum-zinc alloy on the surface of the steel sheet, and is widely used in many fields such as building materials, home appliances, automobiles, environment, machinery, ships and so on.

Stainless steel coils are divided into austenite, ferrite, martensite, dual-phase (ferrite-austenite) stainless steel cold rolled coils and stainless steel hot rolled coils.

PPGL is made of cold-rolled strip steel and galvanized steel strip (electro-galvanized and hot-dip galvanized) as the substrate on a continuous unit. After surface pretreatment (degreasing and chemical treatment), it is coated with a layer by roller coati