... 3,Bitzer compressor 4,R717/R22/R404A ApplicationVacuum freeze drying machine is suitable for fruit, vegetable, aquatic, meat, instant foodstuff,condiments ... .9/27018069.7(exclude refrigeration system)FDG-200200200576Φ2.4*16.6/540360117.5(exclude refrigeration system)FDG vacuum freezing and ...