1. For clarifying shipment’s gross weight or volume weight: The tariff charge is based
    on the shipment’s total gross weight or its volume weight by the heavier one. It means
    that, if the volume weight is more than the total gross weight, then, it will be charged by
    volume weight to bill clients.
2. The Definition of Dimension Weight In accordingly to the IATA calculation formula, we
     take the following exchange method from volume weight to normal weight.
     Length(L)(cm) x Width(W) (cm) x Height(H)(cm) / 5000=Volume Weight(Kg)