C679 Green Light Comes into Being

Chen Fann's eyes widened when he heard the voice.

He didn't know what was happening below, but the sound of the explosion in the iron furnace had put him in a bad mood.

The old man had a calm expression on his face, as if this was a common occurrence.

However, for a professional like him, the current situation was indeed very common. But for a layman like Chen Fann