• <tfoot id="2burl"><var id="2burl"></var></tfoot>
  • <center id="2burl"></center>
    <sub id="2burl"></sub>
    
    
    1. <center id="2burl"></center>

      日本性交电影_大香蕉在线精品_人妻久久黄视频_有码A级

      logo_Jiangsu Zhengdan Chemical Industry Co., Ltd.

      Stock code : 300641

      Hot products:Vinyltoluene (VT) , High-flash aromatic naphthas (SA) , Trimellitic anhydride (TMA)-White or yellowish Flake ,
      zhengdanchem.com
      Technology
      Home >>  About Zhengdan >> Technology

      Owing to the professional R&D team and strong technical strength, the "Continuous oxidation method to produce TMA" researched and developed independently by Zhengdan Chem was granted the 12th China Patent Excellence Award, the Third Prize of Jiangsu Science and Technology Award, the Second Prize for Progress in Scientific and Collective Technology of ACFIC. The mass production technology of Vinyl Toluene has filled the domestic gap and it is mastered by few companies worldwide. Zhengdan Chem is recognized as a Hi-tech Enterprise of Jiangsu province, Key R&D Organization of Jiangsu province, Privately Owned Sci-tech Enterprise of Jiangsu province, Postdoctoral Innovation and Practice Base of Jiangsu province, Engineering Research Center of Jiangsu province for High-performance Three-Agent Chemical Material, Demonstrative Enterprise of Intellectual Property Management Standardization in Jiangsu Province and has obtained more then 20 invention patents and utility model patents.

       

      科技創(chuàng)新

      Go
      TOP

      日本性交电影_大香蕉在线精品_人妻久久黄视频_有码A级
    2. <tfoot id="2burl"><var id="2burl"></var></tfoot>
    3. <center id="2burl"></center>
      <sub id="2burl"></sub>
      
      
      1. <center id="2burl"></center>