gps tracker for car magnetic field How to target the high operating cost of buses
gps tracker for car magnetic field How to solve the high cost of bus operation.
In real life, the company's or enterprise's bus mileage is not clear because the mileage is not clear, the driver may earn personal profit through the invoice when refueling; The bus route is not clear, and the driver may use the bus to do some personal things after picking up the leader or completing official...
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