Cold rolled steel

Cold rolled steel coils/sheets have fine surface and excellent workability. They are widely used in the manufacturing of automobile parts, electrical home appliance, drums, doors, furniture, fenders, hoods etc. The full hard cold rolled steel are mostly used as material for hot-dip galvanized steel sheet.
Production flowing:
Hot rolled steel→pickling process→cold rolling(adopt 4-high reversing cold rolling mill)→degreasing→bell annealing→stretching→straightening→ege cutting→oiling(anti-rust)→recoiling