Brick, in ancient times, was a kind of high quality brick exclusively used for important buildings such as palaces. Because of its firm and delicate quality, it made a sound like metal when knocked, hence the name "gold brick". Gold brick is a large brick two feet square. Since the initial construction of the Forbidden City, this type of gold brick made by special technology has always been a special product of the Forbidden City. Such bricks are laid in the important palaces of the Forbidden City. The gold bricks we see now in the Hall of Supreme Harmony were laid during the Kangxi period of the Qing Dynasty. To this day, they are still as bright as new. A total of 4718 gold bricks are laid in the Hall of Supreme Harmony of the Forbidden City. This unique gold brick in the world is produced in the suburbs of Suzhou. Because of the fine texture and rich colloidal content of Suzhou soil with strong plasticity, the made gold bricks are hard and compact. Moreover, Suzhou is close to the Grand Canal, which is convenient for transportation and can reach Tongzhou of Beijing directly via waterway. For hundreds of years, its technology has been passed down from generation to generation, continuing to this day. According to records, in the 34th year of Guangxu, there were still 24 imperial kilns in Yuliao Village, Suzhou, Jiangsu Province, and "gold bricks" were stopped in this year. Now, Yao Xingmin's family in Yuliao Village has hidden many "gold bricks", two of which were out of the kiln in May of the first year of Ming Zhengde, and should be considered the oldest existing "gold bricks". The gold brick of the founding of the country in Kaiyuan Treasure Shop ■ It vividly displays the majestic style of the founders of New China for the first time, completely reproducing the grand occasion of the founding ceremony ■ Made of 999 pure gold and pure silver, it is divided into three major series and thirteen specifications: gold bricks (6 pieces), silver bricks (6 pieces) and gold bricks (1 piece) + silver bricks (6 pieces) ■ Each specification is attached with precious "Founding Heroes" and "Heroes Handwriting" two valuable scrolls and a Chairman Mao badge ■ Adopting advanced shallow relief, mirror surface, sand blasting, color printing and other dedicated precious metal coin casting technologies in the world Website: http://www.kycb.net