Du Peng did not come to the research institute in the morning, but went directly to the machinery factory with spare parts.

"Director Chen, there's still a problem with this spare part. It needs to be more precise."

He found Chen Jiahao and told him the problem with the spare parts straight away, including the values that Li Xin gave him yesterday, and showed them all to Director Chen.

"Wow, this value is so precise? But to achieve such a result, we can only polish it manually." Chen Jiahao is a retired veteran and is very familiar with weapon values.

At first glance, these data don’t seem so easy to come up with.

However, Director Chen was very quick and immediately called in the workers in the factory to manually polish these spare parts.

"I can only say that I will give it a try and try my best to polish it for you." Chen Jiahao did not dare to say anything full, after all, the machine tool's capabilities are indeed limited.

"Okay, no problem!"

Du Peng watched from the side to avoid making mistakes and damaging the parts.

…

When Li Xin arrived at the institute, he didn't see Du Peng, but he saw other researchers sitting together and discussing while eating breakfast.

"We've been talking about this new batch of submachine guns for a long time. Now that Captain He and his team have completed their mission, the rooms are vacant. They're finally about to be delivered."

They have been preparing for this work for more than a month, and now they have finally received the weapons.

"But once this batch of guns arrives, our institute will be busy."

The number of guns delivered this time is not just dozens or hundreds, but conservatively estimated to be thousands. Checking each gun one by one is indeed a considerable workload.

"Our institute has been on hiatus for a long time. If Comrade Xiao Li hadn't developed something, we could have been busy. It's almost like we're on vacation lately, so it's good to be busy."

As Li Xin listened to their conversation, she remembered that when she first entered the research institute, Du Peng told her that a batch of new submachine guns would be sent from the capital.

Although it took so long, it has finally been delivered.

Li Xin briefly inquired about the situation.

She had just recorded the data of old guns not long ago, and the guns in the army really needed to be replaced.

At noon, Li Xin saw that Du Peng had not returned yet, so he adjusted the amount of food that Xiao Du was allowed to take before letting him go out to get the food.

"He also said that he wanted to upgrade Xiao Du to version 2.0, but he hasn't done any research on it recently." Li Xin watched Xiao Du leave, as if she had thought of something. She felt that she had indeed become a little lazy recently because of taking care of the injured He Beichen.

After lunch, Du Peng had not returned yet, so Li Xin prepared to take a nap. He Beichen had been busy until too late yesterday, so she did not sleep well.

"Political Commissar?!" A researcher suddenly shouted towards the door.

Hearing the sound, everyone who was about to go for lunch stopped and looked towards the door.

Xia Wenqiang walked in from outside. As soon as he came in, he glanced around at the crowd, as if he was looking for something.

"Political Commissar, Comrade Du Peng has gone to the machinery factory." A researcher guessed what he was looking for and spoke up.

"Oh, alright then." Xia Wenqiang nodded, then looked away. "It's the same thing I tell you."

"A large batch of new submachine guns will be delivered from the capital soon. I hope your institute can make preparations in advance and arrange a place to store these guns to avoid any accidents when the guns arrive."

He came to talk about this matter in advance, which shows how much he cares about it.

"I understand, Political Commissar. In fact, it was arranged this morning." A researcher responded immediately.

"After the guns are delivered, the hard-working comrades in the institute should hurry up and check them as many times as possible. If there are any problems, they should be discovered and dealt with in a timely manner." Xia Wenqiang reminded again.

"Don't worry, Political Commissar. This is our institute's job. We won't make any mistakes!"

Li Xin stood by and listened, without responding, but silently wrote down Xia Wenqiang's words.

"The organization has always been very confident in the work of your institute. But this batch of guns was transported from the capital after all, and the journey is long. It is inevitable that there will be bumps and bruises along the way. I am also worried, but I don't mean to say that you are not serious." Xia Wenqiang smiled.

"Thank you for your hard work."

Xia Wenqiang's attitude was very sincere. In fact, he took advantage of his break to make a special trip to send a document to the research institute, which showed that he really cared about it.

…

Li Xin took a nap at noon. When he woke up, he wanted to go to the laboratory to study the upgraded version of Xiao Du, but he saw Du Peng walking in from outside with an excited look on his face.

Are the parts polished?

Li Xin looked at his expression, felt delighted, and immediately walked towards Du Peng.

"I brought back two parts. Can you tell me how they work?" As soon as Du Peng saw her, he couldn't wait to take out the spare parts he had brought from his pocket.

Although Du Peng's hands had been cleaned, the marks of wear on his nails could not be erased and were very obvious.

Li Xin was originally looking at spare parts, but suddenly looked at his hands.

"Did you polish this yourself?" Li Xin asked him in surprise.

The white marks on her hands cannot be washed off even with washing hands, and can only be restored with time. They are all left by grinding. Fortunately, there is no damage, but she is quite familiar with this mark.

"Those workers are not sensitive to numbers. This batch of parts requires high precision, but they can't grasp it well. Either they are a little more or a little less. So I tried it myself." Du Peng nodded.

He was indeed just a supervisor at the beginning, but after failing several times in a row, he couldn't help but take action.

Li Xin carefully examined the parts that Du Peng handed over. As a researcher, Du Peng had a higher sensitivity to numbers and was better at calculations than ordinary people. The parts polished by him were almost a perfect match.

Even if she did it herself, without using the high-precision machines in the space, she might not be able to do better than Du Peng.

"It's perfect. With these parts, the problems with the guns can be greatly improved." Facing Du Peng's expectant gaze, Li Xin nodded affirmatively and praised.

Li Xin almost gave a high degree of approval. Du Peng, who was nervous just now, relaxed all of a sudden and even seemed a little excited because of her praise.

"There are other parts, and they can be completed in the next two days. I brought these two over to show you first." Du Peng explained happily.

"Once all the parts are polished and there are no problems, this new gun can be put into mass production, right?" Li Xin thought about it and asked.