The mutual extension of visa reciprocity will be a significant benefit to business and tourist travelers between china and the united states . frequent american citizen travelers to china will save time and money with longer visa validity 相互延长签证有效期的互惠措施将大大有利于来往于中美两国之间的商务人员和旅游者。经常前往中国的美国公民获得有效期较长的签证，可节省时间和费用。
