• <sub id="hnfxm"><meter id="hnfxm"><ins id="hnfxm"></ins></meter></sub>
      <var id="hnfxm"></var>
    1. <input id="hnfxm"></input>

      <var id="hnfxm"></var>

        1.   Welcome to our company!   
          学生的粉嫩小泬洗澡视频

        2. <sub id="hnfxm"><meter id="hnfxm"><ins id="hnfxm"></ins></meter></sub>
            <var id="hnfxm"></var>
          1. <input id="hnfxm"></input>

            <var id="hnfxm"></var>

              1.  
                         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!