• <dd id="5b4mx"><address id="5b4mx"></address></dd>

    
    
    <nav id="5b4mx"><optgroup id="5b4mx"></optgroup></nav>

      <dd id="5b4mx"><address id="5b4mx"></address></dd>
      <dd id="5b4mx"><optgroup id="5b4mx"></optgroup></dd>
        Welcome to our company!   
      玩两个丰满奶水足在线播放,青草青草欧美日本一区二区,欧美制服丝袜亚洲另类在线
       
               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!