1. The weight only have 13 kg, the shipping is the half of the other laser machine;
2. The laser head has changed, then the energy has become lager, and the power has been larger. Other laser machine used th be 6 watts, now we use 10 watts.
3. There are fewer threads in the machine and a lower failure rate.
In addition, there is a more important point:
The machine is more convenient to focus, just overlap the two laser points. That's finished.
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