ASTM A36 h beam is a common wide flange beam used in construction and machinery for its medium strength. Low carbon content makes it easy to be welded, machined as well as formed.

Precision alloy steel pipe is a special type of steel pipe characterized by high precision, high surface finish, and no oxide layer on either the inner or outer walls. It is typically produced using cold drawing or cold rolling processes, with extremely small tolerances for wall thickness and outer diameter.

ERW (Electric Resistance Welded) steel pipes are widely used in construction, water systems, scaffolding, and structural projects. One of the key reasons for their popularity is that ERW steel pipes are highly suitable for galvanizing, especially hot-dip galvanizing.

Stainless steel welded pipes are ubiquitous in petrochemical pipelines, cleanroom pipelines in food factories, and water supply systems in buildings. They have swept the market with their significantly lower price and high production capacity compared to seamless pipes, but the presence of weld seams has also sparked controversy regarding their reliability.

Galvanized H-beams are corrosion-resistant steel products obtained by hot-dip galvanizing ordinary H-beams. Essentially, a uniform and dense zinc-iron alloy protective film is formed on the surface of the H-beam (a hot-rolled profile with an "H" shaped cross-section), solving the corrosion problem of ordinary steel in humid and corrosive environments.

Steel pipelines are a critical component of oil, gas, and water transportation. Protecting them from corrosion is essential to ensure long service life and safety. Two of the most widely used external pipe coatings are 3LPE (Three-Layer Polyethylene) and FBE (Fusion Bonded Epoxy).