1, able to adapt to heavy load, magnetic nail completely buried, protected from the weather to run <br>2, the high flexibility of movement, speed <br>3, and other capabilities are basically the same two-dimensional code
1, can adapt to heavy-duty operation, magnetic nails completely buried, operation is not affected by the weather<br>2, high movement flexibility, fast speed<br>3, other capabilities and two-dimensional code is basically the same
1. It can adapt to heavy load operation, magnetic nails are completely buried, and the operation is not affected by weather<br>2. High mobility and speed<br>3. Other capabilities are basically the same as QR code<br>