... vertical standard neck/ colde trap type spherical neck,XZ-5,XZ-5A,XZ-5000 rotating evaporator has solved originally existed ... is widely applied in such process as liquid concentration,refining,separating,crystallization and the like in biochemical,pharmaceutical,fine chemical ... rotary button typeFlask capacity: 0.25-3L (It works within 5 liters) Lifting device: seasaw type push button, Electric lift, ...