Rebar is widely used in the construction of houses, bridges, roads and other civil engineering projects. From public facilities such as highways, railways, bridges, culverts, tunnels, flood control, and dams to the foundations, beams, columns, walls, and plates of house construction, rebar is an indispensable structural material. As China's urbanization continues to deepen, the booming development of infrastructure construction and real estate has created a strong demand for rebar.

The production process of large-diameter straight seam welded pipes is simple and the production efficiency is high. However, the strength of large-diameter spiral welded pipes is generally higher than that of straight seam welded pipes. They can produce welded pipes with larger diameters using narrower billets, and can also produce welded pipes and frame pipes with different diameters using billets of the same width. However, the production efficiency is lower compared to straight seam steel pipes. Large caliber welded pipes are mainly used in large-scale pipeline engineering, water and gas transmission engineering, urban pipeline construction, municipal engineering, water supply and drainage engineering, large building steel structures, pile foundations, and other fields.

Carbon structural steel plate refers to carbon steel with carbon content of less than 0.8%. This steel contains less sulfur, phosphorus and non-metallic inclusions than carbon structural steel, and has better mechanical properties.

Galvanized coil, a thin steel plate is immersed in a molten zinc bath so that a layer of zinc adheres to the surface. It is mainly produced by the continuous galvanizing process, that is, the rolled steel plate is continuously immersed in a plating bath containing molten zinc to make galvanized steel plate; alloyed galvanized steel plate. This kind of steel plate is also made by the hot dip method, but it is heated to about 500°C immediately after coming out of the tank to form an alloy film of zinc and iron. This kind of galvanized coil has good paint adhesion and weldability.

Stainless steel pipe is a kind of hollow long round steel, which is mainly widely used in industrial transportation pipelines and mechanical structural components such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instrumentation, etc. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in manufacturing mechanical parts and engineering structures. It is also commonly used as furniture, kitchen utensils, etc.

Stainless steel rods can be divided into three types according to production technology: hot rolling, forging and cold drawing. The specifications of hot-rolled stainless steel round bars are 5.5-250 mm. Among them: small stainless steel round bars of 5.5-25 mm are mostly supplied in straight strips and are commonly used as steel bars, bolts and various mechanical parts; stainless steel round bars larger than 25 mm are mainly used to manufacture mechanical parts or seamless steel pipe blanks .

The stainless steel plate has a smooth surface, high plasticity, toughness and mechanical strength, and is resistant to corrosion by acids, alkaline gases, solutions and other media. It is an alloy steel that is not easy to rust, but it is not absolutely rust-free. Stainless steel plates refer to steel plates that are resistant to corrosion by weak media such as atmosphere, steam and water, while acid-resistant steel plates refer to steel plates that are resistant to corrosion by chemically corrosive media such as acids, alkali and salts.

Aluminum ingot refers to the raw material aluminum used in daily industry. Aluminum ingots are classified into three types based on their composition: aluminum ingots for remelting, high-purity aluminum ingots, and aluminum alloy ingots; According to shape and size, it can be divided into several types such as bar ingots, round ingots, plate ingots, T-shaped ingots, etc.