Iron sheet is divided into two general categories: cold rolled sheet and hot rolled sheet. Oiled sheets are obtained from cold rolling operations of steel sheets that have been previously subjected to hot rolling operations and have been peeled off and are also known as cold steel sheets in the market. The name of the oil sheet is derived from its appearance because in order to prevent rusting of these sheets, their surface is usually oiled (this oil is easily cleaned with alkaline detergents) and since the appearance of these sheets is very It is excellent, it is usually used in the appearance of equipment and in the production of many industrial products such as home appliances, cars, office equipment, etc.