• <strike id="ys6ym"></strike>
  • <strike id="ys6ym"></strike>
    <fieldset id="ys6ym"><menu id="ys6ym"></menu></fieldset>
  • <strike id="ys6ym"></strike>
  • <strike id="ys6ym"></strike>
  • <fieldset id="ys6ym"><menu id="ys6ym"></menu></fieldset>
      <strike id="ys6ym"><input id="ys6ym"></input></strike>
    • gpxbkiq.cn-亚洲国产精品狼友中文久久久,成人无号精品一区二区三区,国产成人无码AV在线播放DVD,久久久不卡国产精品一区二区

      Seamless steel pipe for high pressure boiler


      TECHNICAL PARAMETERS:


      DESCRIPTION:


      Seamless steel pipe for high pressure boiler

      Main materials: 20G, 12CrMoG, 12Cr1MoVG, 15CrMoG, SA-210A1, SA-213T11, SA-213 T2SA-213 T91, 10CrMo910, ST35.8, ST45.8

      ★ English name: Seamless steel tubes and pipes for high pressure boiler

      ★ Executive standard: GB5310-2008

      ★ Nominal outer diameter: Ф 6mm~Ф 1200mm

      ★ Calculation formula: (outer diameter-wall thickness) * wall thickness * 0.02466 = weight per meter (kg)

      ★ Product use: used for heating surface tubes of high pressure boilers, economizers, superheaters, on-heaters, etc.


      Seamless steel pipe for high pressure boiler


      学生妹一级j人片内射视频| 中文字幕人成人乱码亚洲电影| 影视无码精品久久| 无码人妻AV免费一区二区三区| 欧美v亚洲v日韩v最新在线二区| 欧美性猛交xxxx乱大交蜜桃| WWW免费视频在线观看播放| 无码人妻久久一区二区三区蜜桃| 成人av无码一区二区三区| 久久伊人热精品老鸭窝|