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FAQ

  • How about domestic development

    The position and influence of China's rapidly growing hardware industry in the world is increasingly strengthened. With infinite vitality and vitality, China is realizing the leap from a big hardware country to a powerful hardware country. From "small hardware" to "big industry", China is becoming the global hardware manufacturing center. The hardware industry is a traditional, emerging and modern industry. Hardware products are widely used. In the past, people called them small hardware, such as nails, scissors, spanners and knives. These small hardware products have now developed into a big industry with world influence.
  • How about the chemical properties

    Corrosion resistance: refers to the ability of metal materials to resist the erosion of various media.
     
    Oxidation resistance: refers to the ability of metal materials to resist the production of oxide scale at high temperature.
  • How about the process performance

    Casting performance: it refers to some technological properties of whether a metal or alloy is suitable for casting, mainly including flow performance and mold filling capacity; shrinkage and volume shrinkage capacity of castings during solidification; segregation refers to the inhomogeneity of chemical composition.
     
    Welding performance: refers to the characteristics that two or more metal materials are welded together by heating or heating and pressure welding method, and the interface can meet the purpose of use.
     
    Performance of jacking gas section: refers to the performance of metal materials that can withstand upset without cracking.
     
    Cold bending performance: refers to the metal material can withstand bending and not rupture at room temperature. The bending degree is generally expressed by the ratio of bending angle α (external angle) or bending center diameter D to material thickness a. the larger a or the smaller D / A, the better cold bending property of the material is.
     
    Stamping performance: the ability of metal materials to withstand stamping deformation without cracking. Stamping at room temperature is called cold stamping. The test method was cupping test.
     
    Forging performance: the ability of metal materials to withstand plastic deformation without cracking in forging process.
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