Calculation of tonnage (Freight) of the air transport. The figure can be calculated from the following two characteristics - the calculation of the total weight of the scale. Or the actual weight of the item (Gross Weight), which is used by international organizations in kilograms - the weight calculated by volume (Volume Weight) is calculated from the size of the box or package goods. (Dimension) , which can be calculated by adding the width x length x height of the box or package goods.
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