Cold-drawn wire: The raw material is wire rod, which is what we often call rebar. It is processed by the cold drawing process. In this process, the metal wire is stretched through a drawing die at room temperature, so that its size is reduced and its strength is increased. Cold drawing usually does not change the chemical composition of the metal. The surface of cold-drawn wire is relatively smooth, and there is no obvious oxide scale. At the same time, during the drawing process, a variety of surface treatments can be performed, such as polishing, wire drawing, copper plating, sandblasting, etc. Cold-drawn wire has high strength but low plasticity. It can be used as a material for drawing high-carbon steel wire, and can also be used to manufacture carbon structural steel with small and medium cross-section sizes, as well as building structural steel and rebars.

Galvanized wire: It is a process of coating a layer of zinc on the surface of the metal wire. It is usually carried out under the conditions of hot-dip galvanizing or electrogalvanizing. Galvanizing can prevent the metal wire from rusting and improve its corrosion resistance. There is a layer of zinc on the surface of the galvanized iron wire, which has a silver color. Galvanized wire has good toughness and elasticity, and has the characteristics of thick galvanized layer and strong corrosion resistance.

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