That is, metal raw materials are put into the furnace through the charging car. Of course, this process is not artificial, as long as you operate the button.

But the temperature in the workshop is so hot that it is impossible to have air conditioning. There will be smoke when casting, of course, a large part of it is metal particles. The product after melting and casting may involve polishing, and that metal pollution is the ultimate. After all, my body is black.