What are the characteristics of the modeling of ancient wine vessels?

The shape of the stem is strange. The stem cover is made into the shape of an animal's head connected with the animal's back, and the runner part of the stem is an animal-shaped neck, which can be used for pouring wine. Most of them have vivid and weird animal decorative patterns, which are extremely beautiful. In the Shang and Zhou Dynasties, it should be a valuable object, mostly unearthed in important cellars or tombs, with exquisite casting and exquisite craftsmanship.