2021久久国自产拍精品,欧美性猛交XXXX黑人猛交,99在线精品一区二区三区,国产成人A亚洲精V品无码,国产精品国产三级国产专区50,韩国三级在线观看久,男人女人做黄刺激性视频,亚洲AV综合A国产AV中文,日本一卡2卡三卡4卡免费网站,亚洲国产精品国自产拍AV

  • <fieldset id="6co0c"><table id="6co0c"></table></fieldset>
    <fieldset id="6co0c"></fieldset>
    <fieldset id="6co0c"><table id="6co0c"></table></fieldset>
  • <abbr id="6co0c"></abbr>
    <fieldset id="6co0c"><menu id="6co0c"></menu></fieldset>
      <fieldset id="6co0c"></fieldset>
      <ul id="6co0c"><tfoot id="6co0c"></tfoot></ul>
    • <ul id="6co0c"></ul>
    • <cite id="6co0c"></cite>
      <tfoot id="6co0c"><input id="6co0c"></input></tfoot>
      <cite id="6co0c"></cite>
      • News

        Hilong's High-grade Steel Sulfur-resistant Drill Pipes Development and Application Project Won the Gold Award at Shanghai Excellent Invention Selection Competition

        Date 2024-02-21

        (Shanghai, February 20, 2024)  The Hilong Group’s project known as the "Development and Application of High-Strength Sulfur-Resistant Drill Pipe for High-Sulfur Ultra-Deep Complex Wells" earned the gold prize and was listed among the winning projects of the 35th Shanghai Excellent Invention Selection Competition that were recently announced. This competition is jointly organized by the Shanghai General Federation of Trade Unions, the Shanghai Intellectual Property Office, the Communist Youth League Shanghai Committee, the Shanghai Association for Science and Technology, and the Shanghai Invention Association. Hilong’s achievement follows the project's previous recognition in the sixth batch of high-tech achievements transformation in 2023 and its special project approval by the Shanghai Economic Commission for Intelligent Manufacturing and represents yet another honor this project has received.

        The project, jointly applied by the Shanghai Hilong Tubular Goods Research Institute and the Shanghai Hilong Oil Drilling Tools Co., Ltd., addressed technical challenges in existing drill pipe technology, such as low torsional strength, poor sulfur resistance, and low load-bearing capacity. Technological innovation breakthroughs in special material design, heat treatment technology, manufacturing processes, thread structure design, and high-precision machining allowed the team to develop a series of high-grade sulfur-resistant drill pipe products with high sulfur resistance, high strength, high toughness, and high torsional resistance. These products have been applied in a large overseas oilfield, demonstrating leading product performance and technological advancement, both in terms of Chinese and international standards.

        Hilong Group stated that this award reflects the Group’s drive to promote technological innovation in the field of oilfield equipment, strengthen the accumulation and protection of core intellectual property rights, and advance the transformation of scientific and technological achievements. The project has achieved full localization of new materials, processes, and production technology equipment. In doing so, Hilong has broken through technical barriers in harsh oil and gas drilling environments and driven the development of high-sulfur oil and gas fields. This enables deeper drilling, longer horizontal well sections, and more efficient and safer operations. Additionally, the project's products have gained recognition in the international high-end market, showcasing the competitiveness of Chinese manufacturing in the international high-end market and bringing significant economic benefits and engineering application value to enterprise development.

        Approved by relevant municipal government agencies and jointly organized by multiple units and associations, the Shanghai Excellent Invention Selection Competition is an important scientific and technological award established by various groups in Shanghai. Since its inception in 1987, the competition has played a significant role in promoting scientific and technological progress as well as economic and social development in Shanghai.

        理论电影大全| 激情内射人妻1区2区3区| 国产一区二区三区精品视频| 精品无码人妻一区二区三区| 日韩人妻一区二区三区蜜桃视频| 少妇真实自偷自拍视频| 99久久精品国产一区二区三区| 国产一区二区三区免费在线观看| 亚洲国产精品无码久久青草| 久久精品一区二区无码Av无| 91亚洲国产成人精品看片| 国产办公室沙发系列高清| 激情综合色综合啪啪五月丁香| 国内精品久久久久久中文字幕| 成人国产精品一区二区视频下载| 欧美极品jizzhd欧美| 精品无码国产污污污免费网站| 久久久久久精品免费不卡| 午夜精品一区二区三区在线观看| 亚洲人成电影在线观看天堂色| 人人草人人做人人爱| julia无码人妻中文字幕在线| 婷婷久久香蕉五月综合加勒比| 国产av无码专区亚洲av手机麻豆| 妓女爽爽爽爽爽妓女8888| 欧美丰满熟妇xxxx性大屁股| 综合一区无套内射中文字幕| 亚洲天堂导航| 神马影院888不卡院| 亚洲欧美精品aaaaaa片| 亚洲va在线∨a天堂va欧美va| 久久久久亚洲av成人无码电影| 国产精品无码不卡一区二区三区| 国产精品视频一区二区三区四| 综合网中文字幕| 日本大片电影| 内射中出日韩无国产剧情| 午夜av男人的天堂| 久久香蕉影视| 国产在线观看无码免费视频| 亚洲国产成人91精品|