Weathering carbon steel plate (commonly known as weathering steel plate or atmospheric corrosion resistant steel) is a low-alloy high-strength steel made by adding small amounts of alloying elements such as copper, phosphorus, chromium, and nickel (generally less than 5%) to ordinary carbon steel. Its core characteristic is the ability to form a dense and stable rust protective layer on its surface in natural environments ("rust prevention with rust"), significantly improving its atmospheric corrosion resistance (approximately 2-8 times that of ordinary carbon steel), and allowing for long-term exposed use without painting.

Galvanized angle steel is a type of steel whose surface has been treated with zinc for corrosion protection, primarily used to prevent rust and extend its service life. It retains the original L-shaped structure of angle steel, but with an additional layer of zinc for protection. Depending on the processing method, it is divided into hot-dip galvanized and cold-dip galvanized types, and is widely used in power, construction, and transportation facilities.

420 stainless steel bars are solid round bars belonging to martensitic stainless steel, mainly divided into hot-rolled round bars, cold-drawn round bars, bright round bars, and precision-ground round bars. This material has a high chromium content, possessing excellent hardness, strength, and wear resistance. Hardness and wear resistance can be significantly improved through heat treatments such as quenching and tempering, while also having basic rust prevention capabilities.

Welded square tubes are used in construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, boiler construction, highway railings, housing construction etc.

Wear-resistant carbon steel plates typically refer to special steel plates made of high-carbon or medium-high-carbon steel as the base material, which are heat-treated (such as quenching and tempering) or alloy-strengthened to possess high hardness and resistance to abrasive wear.

Galvanized I-beams (also known as galvanized H-beams) are carbon structural steel sections (such as Q235B) with an "I"-shaped cross-section. They undergo a hot-dip galvanizing process to form a zinc alloy coating on the surface, making them a load-bearing structural material used to enhance corrosion resistance.

430 stainless steel bars are solid round bars of ferritic stainless steel, available in hot-rolled, cold-drawn, bright round, and precision-ground varieties. They contain no nickel and possess good rust resistance due to their high chromium content. The material is soft, easily bent, easy to machine, and offers excellent value for money. Its hardness cannot be increased through heat treatment. Processed through rolling, cold drawing, and polishing, it is a commonly used and economical stainless steel material for decorative hardware, kitchen and bathroom products, and general structural components.

Q345 carbon steel bars are low-alloy high-strength structural steel bars, conforming to the GB/T 1591-2008 standard (the new national standard has been upgraded to Q355, but Q345 remains the mainstream grade in the market). "Q" represents yield strength, and 345 indicates a minimum yield strength of 345MPa for thicknesses ≤16mm, significantly higher than that of ordinary Q235 carbon steel. The products include four main cross-sections: round bars, square bars, flat bars, and hexagonal bars, manufactured using hot rolling, cold drawing, and precision grinding processes, and available in three surface finishes: hot-rolled black, cold-drawn bright, and precision ground.

Welded square tubes are used in construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation brackets, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, boiler construction, highway railings, housing construction etc.