国产 亚洲 欧美 另类中文,中文字幕日韩高清DVD,国产免费一区二区三区蜜桃,麻豆精品在线播放

<var id="49rs0"><source id="49rs0"><meter id="49rs0"></meter></source></var>
  • <table id="49rs0"><acronym id="49rs0"></acronym></table>
  • <rp id="49rs0"></rp>

    <source id="49rs0"></source><table id="49rs0"></table>
  • <u id="49rs0"></u>
    Main Products
    Products Grade: 430FR,0Cr17Mo2S
    Specifications: Φ5.5-38 mm
    Applied Standard:  agreement
    Characteristics: electromagnetic valve core etc
    Applications: soft-magnetic stainless st…
    Use of Products: 430FR,0Cr17Mo2S is a soft-magnetic free-cutting stainless steel,adding Si、S、Mo in the base steel 0Cr17,it have low coercive force、good corrosion resistance and good cutting performance.