Groups » Business & Finance » Haiyan Yihui Is A Professional Bolt Factory

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  • Haiyan Yihui Is A Professional Bolt Factory Business & Finance
    Haiyan Yihui Hardware Technology Co., Ltd. is a professional Bolt Factory. We are professional in the selection of raw materials and in the design of products, so please choose us with confidence, we will be your best partner.
  • ab yihui (owner)
    • 278 total views
    • 1 total member
    • Last updated October 15, 2019
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Discussions

  • Last Post by ab yihui
    October 15, 2019

    Haiyan Yihui Is A Professional Bolt Factory

    ab yihui - October 15, 2019 - 0 replies
    First of all, the tensile strength of high-strength bolt raw materials has a great relationship with the quenching process. Generally, it is difficult to reach the raw material requirements of 10.9 high-strength bolts after 40-degree quenching treatment. ...