C, the five elements belong to fire, the attribute is yang fire, and the phase represented is kitchen fire. The sun also belongs to fire C. Fire is fierce, ferocious and destructive.
Geng, the five elements belong to gold, and the attribute is. It represents steel and other metals that can be used to make swords and other killers. Powerful and destructive.
The relationship between the two constitutes a gram. That is, C fire, G Geng Jin.