What is W/M?
W/M is the abbreviation of Weight and/or Measurement.
Method of quoting freight rates.：
(1) For sea freight: per metric ton (1,000 kilograms) or per cubic meter (35.3 cubic feet) whichever is greater.
(2) For air freight: Per kilogram or per 7,000 cubic centimeters (1 cubic foot) whichever is greater.
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