I am the youngest girl in the factory.
The raw materials for this issue are a bit powerful.
This is the metal calcium storage area. 
We don’t use calcium silicate because there are many impurities and complex components. 
The metal calcium in our household is a single calcium element, and the calcium content is more than 99.9%.
This is our raw material silicon barium, the barium content is 30%.
Follow me, the youngest girl in the factory.
What else do you want to know?
Tell me in the comment area~