cooled rolled steel

COLD-ROLLED STEEL (CR) is produced by removing the scales from the surface of the roll-type hot coil steel using hydrochloric acid or sulfuric acid, and then compressing and undergoing annealing heat treatment.
It’s often used after surface treatment such as stamping, gilding, and chemical treatment because there is a risk of red rust occurring.
It’s used for home appliances, drums, containers, furniture, automobile parts, industrial machinery.