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 Group now has two more National "High-Tech Enterprises"

        Date 2020-04-03

        (March 26th, 2020, Shanghai) Recently, Shanghai Hilong CRA-Lined Steel Pipe Manufacture Co., Ltd. and Hilong Petroleum Group (Shanghai) Information Technology Co., Ltd. were successfully certified as National "High-Tech Enterprises", increasing the number of Hilong Group’s national "High-Tech Enterprises" to 14.


        Since the establishment of these two companies, they have been leading the industry in terms of independent intellectual property rights, R & D, organization and management, scientific and technological achievement transformation ability, growth indicators, etc. In the meantime, the companies’ excellent R & D capability ensures that the research and development direction of products is always aligned with the market or leads the market, and that the products are highly competitive in the market.


        At present, Shanghai Hilong CRA-Lined Steel Pipe Manufacture Co., Ltd. has three world-leading CRA-Lined steel pipe production lines and 26 CRA-Lined steel pipe-end structure patents, which provide a technical guarantee for the wide application of bimetal CRA-Lined steel pipes in oil / gas and chemical industries.


        At present, Hilong Petroleum Group (Shanghai) Information Technology Co., Ltd. is leading in many frontier technology fields, such as information communication network security monitoring, communication optical fiber sensor security monitoring, laser spectrum oil and gas leakage detection, millimeter wave intrusion detection, infrared gas imaging-based oil and gas leakage detection, etc. It has an independently developed oil and gas pipeline data collection system, integrity management information system, oil and gas security smart inspection robot system, gas leakage monitoring system, and pipeline damage monitoring system. Several products have been used in the projects of CNPC, Sinopec, provincial oil & gas energy companies and their subsidiaries.


        "Hilong consistently adheres to the development strategy of scientific and technological innovation. These two new national "High-tech enterprises" will not only enable Hilong to enjoy more tax incentives, but also continue to ensure Hilong firmly moves forward on the road of technological innovation in the Group’s development. Hilong will continue to focus on technology as the driving force, increase R & D efforts, improve innovation mechanisms, and further enhance core competitiveness of its enterprises," said Xu Changxue, the Chief Engineer of Hilong Group.

         

        亚洲av无码专区在线观看成人| 性生大片免费观看性| 东京无码熟妇人妻av在线网址| wwww亚洲熟妇久久久久| 妺妺窝人体色www在线下载| 俺来也俺去啦久久综合网| 狠狠综合久久久久尤物丿| 九一国产在线观看免费| 成人免费无码大片a毛片| 少妇愉情理伦片丰满丰满午夜| 欧洲av无码放荡人妇网站| 亚洲av无码潮喷在线观看| 性猛交╳xxx乱大交| www国产亚洲精品久久麻豆| 亚洲人成无码www久久久| 爆乳护士一区二区三区在线播放 | 免费国产在线视频| 国产精品永久免费| 久久久不卡国产精品一区二区| 亚洲中文字幕无码爆乳av| 欧美日韩亚洲国产精品| 人人妻人人藻人人爽欧美一区| 亚洲第一女人av| 成年女人永久免费看片| 又大又长粗又爽又黄少妇毛片| 野外少妇愉情中文字幕| 国产内射爽爽大片视频社区在线 | 十九岁高清电影免费完整版| 国产内射爽爽大片| 亚洲欧美中文日韩在线V日本| 丰满的人妻HD高清日本| 成人欧美一区在线视频| 亚洲AV成人一区二区三区观看 | 99久久免费精品国产男女性高 | 一本一本久久A久久精品综合| 久久久这里只有免费精品2018| 天堂а√在线中文在线新版| 韩国福利一区二区美女视频| 蜜芽AV无码精品国产午夜 | 99噜噜噜在线播放| 日韩人妻无码一区二区三区99|