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

        Shanghai Hilong Shine New Materials Co., Ltd.

        Shanghai Hilong Saineng New Materials Co., Ltd. started to develop and produce coatings in 2003. It has an automatic production line with an annual output of 30,000 tons of liquid coatings. It also occupies an important position in the domestic long-distance pipeline anti-corrosion engineering material supply market. , The mainstream supplier of anti-corrosion materials for Sinopec large-scale pipeline projects. The company has been rated as a high-tech enterprise in Shanghai, a small giant in science and technology in Shanghai, and a special and new enterprise in Shanghai.

        The company independently develops and produces heavy-duty anti-corrosion coatings for various large ships, offshore drilling platforms, wind power equipment, steel structures, oil storage tanks and infrastructure; R&D and production of a series of special coatings for internal anti-corrosion of drill pipe, oil casing and other special oil pipes; a series of special coatings such as solvent-free, anti-static, high temperature resistance, acid and alkali resistance for gathering and transportation pipelines, brine pipelines, etc.; The outer coating of high-density polyethylene (polypropylene), adhesive, epoxy powder coating and inner wall resistance-reducing and wear-resistant coating is used for 3-layer PE (PP) anti-corrosion of buried long-distance steel pipelines.

        The company has its own R&D center - Shanghai Hilong Saineng New Materials Research Institute. There are more than 40 R&D teams and dozens of laboratories equipped with a full set of the most modern optical and electromicroscopic test and analysis instruments and test equipment. A number of products have been rated as Shanghai high-tech achievement transformation projects and national key new products, and have successively obtained dozens of national invention patents. In 2017, Shanghai Hilong Saineng New Materials Research Institute has obtained CNAS certification.

        The company attaches great importance to the construction of management system, and has passed ISO9001 international quality system certification, ISO1400 environmental system certification and ISO1800 safety and occupational health system certification.

        Shanghai Hilong Saineng New Materials Co., Ltd. is determined to create a first-class national brand in the industry with the spirit of truth-seeking and innovation and the concept of honest management, and become the anti-corrosion of special oil pipes, oil and natural gas buried pipelines, Provider of integrated protective solutions for marine coatings and industrial protective coatings.

        国产中年熟女高潮大集合| 日本老熟妇maturebbw| 真人性囗交69视频| 午夜亚洲av永久无码精品| 国产精品538一区二区在线| 在线不卡AV片免费观看| 国产av女人天堂| 中文字幕久久久久一区| 久久99精品国产99久久6尤物| 色吊丝av中文字幕| 国产美女视频国产视视频| 狠狠色狠狠爱综合蜜芽五月 | 热の无码热の有码热の综合| 丰满少妇被猛烈进入高清播放| 高潮videossex潮喷另类| 热の无码热の有码热の综合| 人妻少妇精品中文字幕av蜜桃| 精品永久久福利一区二区| 91九色国产视频| 欧洲AV无码成人精品区| 东京热亚洲色欲影院一区二区| 无码人妻夜夜爽免费| 国产色xx群视频射精| 国产精品V亚洲精品V日韩精品| 欧美精品一区视频一区二区三区| 国产一区二区三区美女秒播| 人人妻人人澡人人爽欧美一区九九| 亚洲精品www久久久久久| 亚洲国产精品久久久久久| 羞羞视频在线观看| 国产精品久久一区二区三区| 亚洲日本欧美日韩中文字幕| 中文乱码字幕在线中文乱码| 无码夜色一区二区三区| 无码精品日韩中文字幕| 亚洲精品国产精品国自产小说| 蜜臀av免费一区二区三区| 免费的美女色视频网站| 无码AV动漫精品一区二区免费| 亚洲无码在线播放网址| 亚洲国产成人91成人版|