长城关隘是长城军事防御体系的主要组成部分,也是保证长城内外交通和贸易往来的重要通道。邮票主图与长城关隘有关系的中国邮票分以下三种:名名称称和和图图案案都都是是长长城城关关隘隘的的邮邮票山海关:位于河北秦皇岛东北15公里,是关外各地进入中原地区的重要通道。 The Great Wall Pass is a major component of the Great Wall’s military defense system and an important channel for ensuring traffic and trade within and outside the Great Wall. The main stamps and the Great Wall pass the relationship between the Chinese stamps are divided into the following three types: the name of the name and map pattern are the pass is the Great Wall off the pass. Shanhaiguan: Located in Qinhuangdao, Hebei Province, 15 km northeast, Central Plains important passage.