In 1986, the Ministry of Posts and Telecommunications issued a set of "Chinese National Residence" stamps, of which the Fujian residence of 1 yuan is a ring-linked earth building, this earth building is now famous Chengqi Building, Chengqi Building is a castle - a family city. Stamps are "national business cards", the influence is very far-reaching, the huge Chengqi Building is using this inch of stamps to become famous around the world.