Feature: 1.Good physical and chemical performance due to adoption of GG17 boron-sillicon glass. 2. Experiment can be conducted by choosing normal temperature,high temperature(200oC) and low temperature(-80oC) reaction conditions. 3.Work can be done by choosing normal pressure and negative pressure conditions and the negstive pressure can be below than 0.098Mpa under static conditions. 4.Digital display mixing speed,variable frequency,constant mixing system and stable orking. 5.Tetrofluoride mixing oar (leave), sealing between the mixing axits and the reaction kettle is made of special materials. 6.No dead cavity,anti-corrosion matetrial feeding valve. 7.Compete discharge of cooling or heating solution in the grass layer of the device after reaction. 8.Scientific,new,pratical and beautiful structure andappearance.