... -50L 3.Sealing system good rotary evaporator RE2000AAC-motor for no classless adjustable speedno brushless, no sparkle,Sealing of ... evaporate hydrolytic enzymes to condense receiving.3. Specially is suitable for concentration, crystallization, separation, reclamation, etc.4. It is ... -industry.Feature:1. AC-motor for no classless adjustable speed, no brushless, no sparkle, long-lift;2. Sealing of the ...