<pre id="5zrwi"><s id="5zrwi"></s></pre>

<center id="5zrwi"></center>
  • <object id="5zrwi"></object>
    <th id="5zrwi"><option id="5zrwi"></option></th>
    <center id="5zrwi"><small id="5zrwi"></small></center>
  • <code id="5zrwi"></code><center id="5zrwi"><em id="5zrwi"></em></center>

      Welcome to our company!   
    久久久久久久久无码精品,中文精品无码中文字幕无码专区,午夜精品一区二区三区电影,激情伊人五月天久久综合
     
             Sulfide series
             Ester series
             Alcohol series
             Organic salt and other se
             More
     
       
      About us
    Dongying webchem chemical Co.,Ltd.is a high-tech chemical enterpeise integrating research,production,Custom,transfer,Market Research,Sales & Support.
     
    Our company has different departments such as experiment center,Test Base, production base,Testing Centre and sales department. we can do many high challenge chemical reactions. the experimental device can carry on no matter high temperature,low temperature,high pressure or high vacuum. in addition, we have a professional work team, and have a rich experience and technical advantage in halogenation,hydrogenation, oxidoreduction, hydrolysis,decarboxylation,acylation,rectification and so on. especially in Chiral technology.
     
    Up to now,our products have been exported to America,England, France,Spain,India,South Korea,Japan ,etc, We have won a good reputation in and abroad!