Shipping that utilizes bill of lading is carried out on the basis of the contract, which is called the bill of lading. This type of transportation is governed by international legal sources. The norms of international conventions and agreements, the effect of which extends to transportation under a bill of lading, are mainly mandatory. Therefore, the parties must strictly comply with their requirements.

In addition to these two main forms of transportation of international shipping, there are also some other types of contracts, such as time charter and bareboat charter. These are agreements on the provision of a vessel with a crew or without a crew for a certain time for the carriage of goods, passengers, and for other purposes of merchant shipping.

亚马逊是支持客户无条件退换货的，FBA仓对退回的产品不会再进行任何的鉴定，也不会收取买家的任何费用。就算退回来的产品没有质量问题，亚马逊也不次再次将产品售给***个买家。这样的退货方式其实算是较为偏袒客户的，会造成产生较高的退货率。如果产品被退回，无论是销毁还是寄还卖家，亚马逊还会再另外收取费用。如果是第三方海外仓，对退回来的产品，而海外仓的话，如果不是质量问题的话，可以替卖家更换标签或者重新包装，然后再次进行销售，能减少卖家的损失，将货物放在海外仓，都潜在安全风险。