Tongzhou is one of enterprises all over the country that have the common trade permission to export coke. 山西通洲贸易有限公司是全国具有焦炭一般贸易出口资质的企业之一。
MFN was actually a slightly misleading term for normal trade relations without any extra tariffs or other barriers. 贸易最惠国待遇实际上是一种有点令人产生误会的说法，指的是没有额外关税或是其它壁垒的一般贸易关系。
