... excellent performance 3, automatic adjustment 4. trial freezing and drying 5, hygienic standard Technical performance:FDG-0.5 ... of freezing and drying pot, vacuum pumps, heating system, refrigerating machines, pre-frozen system and control system, etc.In composition and design, FDG ... .5 has a larger capacity in vacuum, refrigeration and heating, convenient for various trial studies of specific technics ...