The unit is comprised with evaporating plates, hydrostatic, transmission system, thermal insulation housing (thermal insulation door for ship) etc.\n\nthe unit is up to the international hygienic standard of processing aquatic products and its whole structure is compact with reliable non-corrodibility and convenient operation. the thermal insulation door may put to use open-door, sliding door and rolling door according to the requirement of user.\n\nthe unit is applicable for the quick-freezing of seafood, meat products vegetables.