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>
      • About HILONG

        HomeAbout HilongHilong Industry

        GO Back

        Hilong Pipeline Engineering Technology Service Co., Ltd.

        Hilong Pipeline Engineering Technology Service Co., Ltd. is a research and development technology-based enterprise integrating internal and external coating of pipelines, robot internal patching, oil pipe anti-corrosion technology research and pipeline integrity technical services. Holding <01623.HK>) is a wholly-owned subsidiary. The company covers an area of ??500 mu and has a professional stacking site of nearly 200 mu. It is located in Shanghai Baoshan Industrial Park, adjacent to Shanghai Baosteel Group and East China Steel Pipe Production Base, and 3.5 kilometers away from Shanghai Luojing Port, with convenient transportation.

        The company is "Shanghai High-tech Enterprise" and "Shanghai Little Giant Cultivation Enterprise". It has won 1 national innovation fund and 2 high-tech achievement transformation projects. The project has been approved and completed. More than 30 technology development projects, more than 20 patents and utility models. Hilong Group has professional pipe research institutes and materials research institutes, as well as nationally qualified testing and inspection laboratories.
        The company has a coating production base in Shanghai, with a total of 4 pipeline internal and external coating production lines and a complete testing and inspection laboratory. The maximum coating diameter is 2.6 meters, and the maximum single steel pipe length is 18 meters. The coating capacity exceeds 15 million square meters, and various liquid coatings can be applied to the inner wall of the steel pipe, and the outer wall is coated with three layers of polyethylene/polypropylene (3PE/PP), two layers of polyethylene/polypropylene (2PE/PP), single layer Layer/double-layer/three-layer sintered epoxy powder (FEB/2FEB/3FBE), and other outer coatings for anti-corrosion processing and inspection.
        The company has established a complete ISO9001 quality management system and HSE environmental management system, and has been operating effectively.
        The company constantly summarizes scientific theories in the practice of anti-corrosion technology, and under the guidance of scientific and technological principles, through large-scale investment, it continuously improves the quality level of products and develops new materials, new processes and new products. Strive to make the company become a first-class enterprise of anti-corrosion materials and products for oil pipes, and repay the society. Relying on technology for development and quality for survival, we are willing to cooperate with domestic and foreign counterparts for common development and create a new situation in oil and gas development and pipeline construction.

        亚洲成av人在线观看网址| 99视频精品全部在线观看| 在线久综合色手机在线播放| 亚洲aⅴ无码牛牛影视| 成人性生交大片免费看| 成人区人妻精品一区二区不卡网站| 亚洲一区二区三区自拍公司| 免费人成在线观看视频高潮| 免费无码又爽又刺激聊天APP| 黄色网站在线| 国产永久免费一二三区AV| v欧美精品v日本精品| 精品91久久久久久中文字幕人妻| 国产乱了真实在线观看| 亚洲av综合色区无码另类小说| 最近更新中文字幕在线| 成人无码区免费a∨网站| 国内精品久久久久影院一蜜桃| 激动网色视频| www插插插无码免费视频网站| 国产免费av一区二区三区| 久久精品亚洲国产| 麻豆国产VA免费精品高清在线| JIZZJIZZ国产| 精品亚洲成A人在线观看| 少妇人妻AV毛片在线看| 免费夜色污私人影院在线观看| 日韩加勒比无码人妻系列| 欧洲女人与公拘交酡视频| 欧美极品少妇XXXXⅩ喷水| 最爽无遮挡行房视频| 欧美人妻一区二区三区| 国产第一页浮力影院入口| 国产好爽…又高潮了毛片| 99精品久久99久久久久| 又粗又大内射免费视频小说| 97免费人妻在线视频| 久久国产精品无码一区二区三区 | 男人扒女人添高潮视频| 十九岁日本免费完整版bd| 精品一区二区三区四区五区六区 |