What is the name of the water tank that enters the door?

On the level of ancient artifacts in China, jars are vulgar things that can't be served. Compared with the incense burner and turtle crane on the base of white marble, it is really inconspicuous.

The emperor, who has always paid attention to respect and inferiority, wants to put such a vat in the most solemn place under the sun, and even daub it with precious gold, which naturally has special royal needs.

In the eyes of the emperor, the real names of these tanks are called auspicious tanks, also called Taiping tanks. Generally speaking, they are all made of iron and copper. According to the material, it can be divided into iron barrel, bronze barrel and gold-plated barrel.

According to the records in the archives of the Qing Dynasty, there are 308 such auspicious jars in the Forbidden City. However, due to historical reasons, the number of existing auspicious cans is 23 1, of which 18 is gold-plated and the rest are bronze or iron cans.