久久一日本道色综合久久不,99久久无码一区人妻A黑,国产精品爆乳在线播放,国产精品一区无码专区

  • <b id="9ocva"></b>
  • <blockquote id="9ocva"></blockquote>
    Casus Products>> Casus

      The SCM435-M produced by Xingtai steel is a series of simplified annealing products developed to meet the needs of market development. It is mainly used to produce 10.9 grade high strength fasteners. SCM435-M has lower hardness and better cold heading performance than ordinary SCM435. The customer reflects that the material can simplify the annealing process, reduce the production cost, and completely meet the requirements.