Round steel is a solid strip of steel with a circular cross-section. Its specification is typically expressed in terms of diameter, measured in millimeters (mm).

Rebar, commonly known as hot rolled ribbed bar, is a type of steel bar. The grade of ordinary hot rolled steel bar is determined by its minimum yield point and is denoted by HRB (Hot Rolled Bar) followed by a numerical grade. The letters H, R, and B represent hot rolled, ribbed, and bars respectively. Rebar can be classified into different categories based on its strength, such as HRB300E, HRB400E, HRB500E, HRB600E, etc.
The thread specification range of rebar is generally 6-50mm. We usually involve more are 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 28mm, 32mm, 36mm, 40mm and so on. National allowable deviation :6-12mm deviation in ±7%, 14-20mm deviation in ±5%, 22-50mm deviation in ±4%. Generally, the fixed length of rebar is 9m and 12m, among which 9m long thread is mainly used for normal road construction and 12m long thread is mainly used for bridge construction.

Wire rod refers to rolled steel with a circular cross-section, typically ranging in diameter from 4mm to 16mm. It is commonly available in the form of coils or bundles. Wire rods are produced using various materials such as steel, aluminum, copper, and non-ferrous alloys.
There are numerous types and varieties of wire rods available. Carbon steel wire rods are categorized into two main types: medium and low carbon steel wire rods, which are often referred to as soft wire rods, and medium and high carbon steel wire rods, which are commonly known as hard wire rods.

Angle steel, commonly known as angle iron, is a carbon structural steel extensively used in construction. It is characterized by its long strip shape with two sides perpendicular to each other, forming a simple section profile. Angle steel is divided into two categories: equal angle steel and unequal angle steel.
The production of angle steel starts with low carbon square billets as the raw material. The finished angle steel can be in a hot-rolled, normalized, or hot-rolled state. Angle steel is versatile and can fulfill different stress requirements in structures, serving as a connection between components. It finds wide application in various building structures and engineering projects, including beams, bridges, transmission towers, lifting and transportation machinery, ships, industrial furnaces, reaction towers, container racks, and warehouses.

Carbon H-beam steel is a type of structural steel beam that derives its name from its H-shaped cross-section. It features two parallel flanges with equal thickness and no taper on the inside surface. Carbon H-beam steel offers competitive pricing and is a versatile product widely used in various structural applications.
H-beams are commonly employed as the primary structural elements in buildings. They are utilized for various purposes, including poles, beams for residential constructions, trusses, and cantilevers. Additionally, H-beams can be cut, extended, welded, and secured with bolts to support specific structures based on their requirements.