characteristic:
1. domestic well-known brand, with high speed and efficiency.
2. with the memory of the break point,guarantee that can process the accident or previous day.
3. unique preservation way of the zero point.
characteristic:
1. domestic well-known brand, with high speed and efficiency.
2. with the memory of the break point,guarantee that can process the accident or previous day.
3. unique preservation way of the zero point.