DHL燃油查询网址：https://www.5idhl.com/#/createExpress/FuelSurcharge FEDEX燃油查询网址：http://www.fedex.com/cn/rates/dfs.html
UPS燃油查询网址：https://www.ups.com/hk/zh/shipping/surcharges/fuel-surcharges.page?srch_pos=1&srch_phr=fuel
