الوصف

1. Stable constant pull function, power-on self-checking, automatic fault detection function;

2. Storage memory function, four groups of pounds can be arbitrarily set for storage;

3. Set up four sets of prestretching functions to reduce damage to the strings;

4. Memory function of pulling times and setting of three-speed pulling speed;

5. Knotting and pounds increasing setting, automatic reset after knotting and stringing;

6. Synchronous racket clamping  system, six-point positioning, more uniform force on the racket.