故宫内的殿宇楼阁均为砖木结构，很容易着火。一旦发生火灾，如果不能及时扑救，火势就会迅速蔓延，把这座价值连城的辉煌建筑顷刻之间化为乌有。为此，紫禁城的建设者们对防火特别重视，在宫殿前设置了这些大缸，称之为“门海”。门海即门前的“大海”，门前有了“大海”，以水克火，砖木结构的故宫就不怕火灾了。因此，这些铜缸又被称作吉祥缸。每尊缸可贮水3000多升，如同一座座小水库。（铜大缸）唐县汇丰工艺品厂是一家铜雕塑设计制作一体的工艺品厂家，如今为各个施工单位提供铜大缸雕塑产品，有故宫铜大缸、铜大缸、寺庙铜大缸、铸铜大缸、黄铜大缸、青铜缸等，铜大缸，欢迎前来洽谈选购

The palaces and pavilions in the Palace Museum are all brick and wood structures, which are easy to catch fire. Once a fire breaks out, if it can't be put out in time, the fire will spread rapidly, and this magnificent building of great value will be vanished in an instant. For this reason, the builders of the Forbidden City attach great importance to fire prevention. They set up these cylinders in front of the palace, which are called "Menhai". Menhai is the "sea" in front of the door. With the "sea" in front of the door, the brick and wood structure of the Forbidden City will not be afraid of fire. Therefore, these copper cylinders are also called auspicious cylinders. Each cylinder can store more than 3000 liters of water, just like a small reservoir. Tangxian Huifeng Handicraft Factory is a crafts manufacturer which integrates the design and manufacture of copper sculpture. Now it provides copper cylinder sculpture products for various construction units, such as Forbidden City copper cylinder, copper cylinder, Temple copper cylinder, cast copper cylinder, brass cylinder, bronze cylinder, etc. Welcome to negotiate and purchase copper cylinder.