There is a type of steel profile, the cross section of which is circular or square, this type of profileis called steel cans.
If the cross-section is circular, the product is a pipe, the steel products including, steel pipe, steel rebar, steel sheet, steel corner, steel profile, steel cans, steel belt, etc. are named according to its shape and application. , But all of them are steel alloy. (Steel cans)
And how each one is produced is different, and in some cases the stages of the production process are similar.