Function introduction：       Choose between models with com..

  Function introduction :         Choose between models with compact..

   Function introduction：          Choose between mod..

    Function introduction：   Patented stepper valve hot gas by-passing cascaded..

      Function introduction：   Patented stepper valve hot gas by-passing ca..

       Function introduction： Patented stepper valve hot gas by-passing ..

  Function introduction： Patented stepper valve hot gas by-passing cascaded refrigeration f..

 Function introduction：  Patented stepper valve hot gas by-passing cascaded refrigera..

Technical performance It has micro-computer control, electronic lock and AC variable-conversion m..

Technical performance  - It has micro-computer control, electronic lock and AC variable-conver..

      Function Introduction：   ·    Patented s..

  Function Introduction：   ·    Patented stepper valve hot..

  Function Introduction：   ·    Patented stepper valve hot..

  Function Introduction：   ·    Patented stepper valve hot..

  Function introduction：    Patented stepper valve hot gas by-passing and dynami..