久久中文字幕久久无码,亚洲日韩va一区二区三区,99re6在线观看国产精品,成人国产精品秘 果冻传媒在线

  • <video id="boa4d"><mark id="boa4d"><noframes id="boa4d"></noframes></mark></video>
  • <b id="boa4d"><acronym id="boa4d"></acronym></b>
    <var id="boa4d"><track id="boa4d"><ins id="boa4d"></ins></track></var>

    <video id="boa4d"><mark id="boa4d"></mark></video>
    <u id="boa4d"></u>

    1. Main Products
      Products Grade: P245
      Specifications: φ18~32mm
      Applied Standard:  agreement
      Characteristics: P245 is used to produce big size PC Bar,which can be applied in highway and railway bridge、mine support and Dam construction.
      Applications: Prestressed steelPC steelbar steel
      Use of Products: This product has characteristics of reasonable chemical composition, high hardenability, good strength and toughness, good surface quality.