Divine material is also a kind of substance. When it reaches the melting point, it will be gasified if it exceeds the critical value of the melting point.

To refine artifacts, it is usually enough to make the substance reach the melting point. Of course, the closer to the gasification point, the more pure the artifacts are.

"Thermometer, if you have a super thermometer, you can detect the temperature of these materials when they melt, control it to the critical value of gasification, and then mark them out, anyone can understand at a glance, so that fire controllers, even ordinary people, have no problem!" Chen Jiuyin thought to himself that...