章 319: Captain Yu

Thinking of this, the middle-aged man's thoughts immediately became clear.

He glanced at the metal block in the young man's hand and looked at the metal's mottled surface. He quickly understood the reason for his failure.

With a confident smile, he leaned forward and whispered, "Is it possible that there was a problem with the oxidation, causing the weight of the material to not meet the standard?"

Before the middle-aged man said anything, Wu Mo was still thinking hard.

Including the previous control link, the set data problems, and the proportion of auxiliary materials, he had considered all of them. There were no mistakes, but everything was as he had expected.

He thought that he would not be able to figure out the reason for his failure today, but the words that came from behind him suddenly made Wu Mo's eyes light up. He felt as if he had been enlightened!