Perfect technology is an ancient technology.

Perfection refers to the casting process of ancient bronzes.

Complete fire originally refers to the temperature that needs to be mastered when casting ancient bronzes. Bronze is an alloy of copper, lead and tin. The bronze casting technology in China was very mature in Shang and Zhou Dynasties. The earliest record of "perfect" comes from "Flower King Gong Ji", which is a book describing the specifications and manufacturing technology of various handicrafts during the Spring and Autumn Period and the Warring States Period.

In the process of bronze casting, it is necessary to melt the alloy in the furnace first. At this time, depending on the temperature, the alloy will emit several different colors in turn: black, yellow, white, blue and white. When cyan appears, it can be cast. So perfection refers to the casting process of ancient bronzes.