Aluminum tubes: Aluminum tubes are cylindrical in shape and are available in various sizes, wall thicknesses and diameters. Tubes can be circular, rectangular or elliptical to meet specific applications. Square tubes: These are square hollow profiles with uniform wall thickness. They are usually used in framework and structural applications.

In the steel industry, welded pipes and seamless steel pipes are two common and important types of pipes. Each of them has its unique characteristics and applicable scenarios. The correct selection and application of these two types of steel pipes are of great significance for ensuring the quality of the project and improving economic benefits.

The textured steel bars frequently used in construction are usually called ribbed steel bars, and the threaded parts on the steel bars are called cross ribs. There are various types of cross ribs in the building materials market. The most commonly used ones in house construction are spiral ones, and there are also crescent-shaped and herringbone ones.

The properties of seismic rebar and ordinary rebar are different, such as pressure resistance, bending force, ductility, etc. Other differences are appearance, use symbol, structure, etc. This paper introduces the specific differences.

The production process of rebar enterprises can be roughly divided into the following main areas according to the degree of close connection between the various processes: Ironmaking area, main steel refining area, finishing area.

steel shapes is a kind of bar steel with a certain cross-section shape and size, mainly including I-steel, channel steel, Angle steel, H steel and so on. The following is an introduction to the application characteristics of section steel.