<sub id="tcg6l"><tr id="tcg6l"><div id="tcg6l"></div></tr></sub>
    1. <sub id="tcg6l"><optgroup id="tcg6l"><div id="tcg6l"></div></optgroup></sub>

      亚洲精品不卡无码福利在线观看,亚洲人成伊人成综合网中文,无码国产精成人午夜视频一区二区,国产精品亚洲二区在线看,国产精品久久久久久久久久久久,欧美自拍亚洲综合丝袜,极品粉嫩嫩模大尺度无码视频,最新亚洲中文av在线不卡
      Hotline: +86-021-57278880
      Language:   
      PRODUCTS
      Baigang valve group brand manufacturing -Ball Valve

      Ball Valve summary

      Ball valve has the advantages of simple structure, quick switching, easy operation, small volume, light weight, few parts, least fluid resistance and good tightness.


      Ball Valve scope of application

      1. Suitable for medium with low temperature (≤150℃), high pressure and high viscosity;
      2. Can not be used for flow regulation;For situations requiring quick opening and closing;
      3. Usually, the ball valve is recommended to be used in the pipeline with two-position regulation, strict sealing performance, wear, shrinkage channel, rapid opening and closing action, high pressure cut-off (large pressure difference), low noise, gasification phenomenon, small operating torque and small fluid resistance;
      4. Also suitable for light structure, low pressure cut-off, corrosive medium;


      Ball Valve standard

      API 6D/ISO 14313: Pipeline valves
      API 608: Flanged, threaded and butt-welded end steel ball valves
      - ISO 17292, Steel ball valves for the petroleum, petrochemical and refining industries
      BS 5351: Steel ball valves
      GB/T 12237: Flanged and butt-welded steel ball valves
      DIN 3357: Ball valves
      Shell SPE 77/100: Press BS5351 ball valve
      Shell SPE 77/130: Flanged end and butt-welded end ball valves according to ISO14313

      +86-021-57278881
      qrCode
      主站蜘蛛池模板: 亚洲国产精品久久青草无码| 2023国产精品一卡2卡三卡4卡 | 中文字幕制服丝袜第57页| 寂寞少妇做spa按摩无码| 久久久久琪琪去精品色无码| 国产美女精品视频线免费播放 | 三男一女吃奶添下面视频| 日本最新高清一区二区三| 浪荡女天天不停挨cao日常视频| 欧美品无码一区二区三区在线蜜桃| 国产精品拍国产拍拍偷| 国产精品欧美亚洲韩国日本久久| 无码人妻一区、二区、三区免费视频 | 色诱久久久久综合网ywww| 国产精品丝袜黑色高跟鞋| 人妻无码人妻有码中文字幕在线| 亚洲国产熟妇在线视频| 绝顶高潮合集videos| 男男车车的车车网站w98免费| 韩国的无码av看免费大片在线| 狂野欧美性猛交xxxx| 使劲快高潮了国语对白在线| 人妻去按摩店被黑人按中出| 狠狠色婷婷丁香综合久久| 国产偷国产偷亚洲清高孕妇 | 亚洲中文字幕不卡无码| 国产农村黄aaaaa特黄av毛片| 午夜福利yw在线观看2020| 国产+成+人+亚洲欧洲自线| 亚洲熟女乱色综合亚洲小说| 女人被做到高潮免费视频| 狼群社区www中文视频| 2020国产成人精品影视| 欧洲美熟女乱av亚洲一区| 一本色道久久综合亚洲精品| 精品精品国产欧美在线小说区| 亚洲精品无码久久一线| 亚洲国产精品久久青草无码| 男人j进入女人j内部免费网站| 精品亚洲国产成人| 67pao国产成视频永久免费|