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

        Two Hilong companies recognized as "Specialized, Refinement, Differential, Innovation (SRDI)" Enterprises in Shanghai in 2021

        Date 2022-06-16

        Recently, the Shanghai Municipal Commission of Economy and Informatization announced its list of Shanghai SRDI Enterprises in 2021. Shanghai Hilong Oil Drilling Tools and Hilong Group of Companies (Shanghai) Information Technology were selected, earning both companies the title of "SRDI" Enterprises in Shanghai.

        Since its establishment, Shanghai Hilong Oil Drilling Tools has been committed to the R&D, design, manufacturing and professional technical services of oil drilling tools and mining drilling tools. The company utilizes different materials for the manufacture of drilling tools and engages in the R&D and design of screw-type fasteners based on different drilling environments and user needs,. Its self-developed high sulfur resistance, high strength and high torsion resistance drilling tools feature internationally advanced technology and are highly competitive products. The company occupies an important position in domestic and foreign markets, including the Middle East, North and South America, Africa and other key regions.

        The work of Hilong Group of Companies (Shanghai) Information Technology revolves around providing online industrial platforms, industrial inspection robots and industrial smart sensor products and services. Its pipeline integrity assessment and management (PIAM) system, LNG station inspection system, and explosion-proof inspection robot products have seen wide applications and demonstrate solid potential for development in the future.

        "This time, Hilong Drilling Tools and Hilong Information have been awarded the title of 2021 Shanghai 'SRDI' Enterprises, which highlights Hilong's professional development orientation, innovation and efficiency potential, and characteristic development. It also affirms how Hilong has insisted on independent innovation and development for many years," said Dai Daliang, Executive President of Hilong Group. "Hilong will continue to demonstrate the qualities of 'SRDI' as an important aspect of cultivating subsidiaries, following industry segments, constantly tackling key technical problems, and building an enterprise group that possesses more tricks of the trade and heightened international competitiveness."

        亚洲av中文无码乱人伦在线视色| 少妇┅┅快┅┅用力战狼二| 日本MV高清在线成人高清| 国产精品三级av及在线观看| 日韩精品一区二区三区中文无码| 精品成人免费一区二区不卡| 中国少妇内射xxxx狠干| 五十老熟妇乱子伦免费观看| 99久久久久久久国产精品| 人妻夜夜爽天天爽爽一区| 亚洲av无码精品色午夜app| 色妞ww精品视频7777| 91人人妻人人爽人人狠狠| 国产麻无矿码直接进入| 九一九色国产| 久久精品免费一区二区三区| 久久男人AV资源网站无码软件| 国产精品久久久久9999不卡| 亚洲伊人久久大香线蕉综合图片| 九九热精品在线观看| 欧美日韩在线观看一区| 在熟睡夫面前侵犯我在线播放| 国产在线拍偷自揄拍无码91| 久久av高潮av无码av| 人人做天天爱夜夜爽2020| 国产成人亚洲精品无码av大片| 国产日产亚洲系列最新| 精品久久久久久无码人妻| 亚洲国产一区二区三区在线观看| 用舌头去添高潮无码视频| 成人国产精品一区二区视频| 特级精品毛片免费观看| 亚洲视频一区二区| 久久伊人成人网| 欧美福利一区| 乱人伦人妻精品一区二区| 日韩成人在线观看视频| 亚洲av无码国产在丝袜线观看| 精品久久久久久无码专区不卡| 人妻av综合天堂一区| 久久久精品人妻一区二区三区|