Rebar specifications are classified by diameter, strength grade (such as Grade 60 in ASTM standards) and material (such as epoxy coating or stainless steel), and are widely used in reinforced concrete structures such as houses, bridges, and tunnels.

During construction, Rebar needs to be cut, bent and tied according to the design to form a skeleton before pouring concrete. Its anti-rust treatment (such as galvanizing or adding corrosion-resistant alloys) is key, especially in humid or saline environments. In addition, modern technology has also developed non-metallic alternatives such as glass fiber (GFRP), but steel Rebar still dominates due to its low cost and high strength, and is an indispensable material for infrastructure.