1. Construction field: Carbon steel can be used to make important components such as building structures, bridges, pipelines, etc. because of its high strength and durability.

2.Machinery manufacturing industry: Carbon steel is often used to make parts in large equipment such as automobiles, ships, and robots because it has good plasticity and wear resistance.

3.Daily necessities: Carbon steel can be used to make various pots, knives and tableware because of its high hardness and durability.

4. Industrial equipment: Carbon steel can be used to make parts for various industrial equipment, such as bearings, gears, etc., because it has good strength and wear resistance.