(1) Domestic casing according to SY/T6194-96, the length of the casing is not fixed, and its range is 8-13m. However, casings not shorter than 6 m can be supplied, and the number must not exceed 20%.

With the development of society, the construction industry has become a common sight in cities. Steel plates are often used in the construction industry.

Carbon steel plates are suitable for manufacturing, building construction, bridges and ships, etc.

Carbon steel can be further divided into low carbon steel, medium carbon steel and high carbon steel, mainly depending on the carbon content in the steel.