1. Ex-Motor 2. Ex-frequency inverter 3. Ex-auto temperature controller 4. QH/HA01-2005 Standard 5. PTFE seal, good performance in seal, non-corrosibility 6. Electronic classless speed regulation, and smooth running 7. Clear date display, and information control: running speed digital display 8. Handwheel lifting, stainless steel, and anticorrosive bath 9. Dual-reflux integrative standard joints for cooling coils, and ground glass receiving flask 10. Valve feed pipe cover connecting tetrafluoroethylene pipe 11. Stainless steel and AI alloy structure 12. Bath quickly auto lifting, stable and durable