... packaging high-voltage module, resistant to moisture, earthquake, maintenance-free; 03.Modular with plug-in design, easy maintenance, reliability; 04.Use ... space, water, gas dual-use, simple operation, can be standing or hanging, is more practical; Why do we need an ... prolong the preserving time of food.e. It is equipped with the functions of sterilization, cleaning, decoloring, deodorization and mold ...