Datang: The prince of salted fish was overheard by Li Er

After Li You nodded, he said, "Okay, tomorrow I will ask the people from Shence Mansion to transport the cement there!"

"However, this cement has just been researched, and not many people know how to use it even in Shence Mansion."

"Father, please send a few more people to study together tomorrow, after all, they will still have to use it by themselves in the future."

"Father also knows that there are not many people in Shence Mansion!"

Now that cement can be mass-produced, if it is useful for infrastructure construction, Li You will naturally not hide it.

He is also going to take this opportunity to promote the cement.

"That's natural. I'll send someone to find you tomorrow."

Li Shimin nodded repeatedly.

He was already very excited that Li You could agree to his request. As for Li You's other reasonable demands, he would naturally satisfy him.

After the negotiation was completed, Li Shimin originally wanted to keep Li You to sleep in the palace.

But it was rejected by Li You very seriously.

【There are so many messes in the palace, can you sleep well if you stay here. 】

[No, of course not! 】

Li Shimin had no choice but to let Li You go.

After Li You left, Li Shimin remembered that he hadn't asked Li You about how to tame the steer.

But thinking of Li You's "duplicity" character, Li Shimin still chose to give up.

Today Li You can cooperate with him and take out the cement, Li Shimin is already satisfied.

Thinking of slapping Qu Tutong in the face tomorrow, Li Shimin was so excited that he couldn't sleep.

Since he couldn't sleep, Li Shimin picked up the memorial on the table to read.

Seeing this, Li Shimin was not calm again.

This memorial belongs to Duke Ji Duan Lun.

Duan Lun is Li Shimin's brother-in-law, and his wife is Li Shimin's fourth sister, Princess Gaomi.

Princess Gaomi was originally married to the eldest grandson Xiaozheng.

The eldest grandson Xiaozheng, like the eldest grandson Wuji, is from the eldest grandson clan in Luoyang, so he has a good relationship with Li Shimin.

However, the eldest grandson Xiaozheng was not in good health, so he received a lunch box early, and Princess Gaomi also returned to her natal home.

Later, Prince Yin Li Jiancheng decided to marry her to Duan Lun.

Duan Lun is from a famous family.

His grandfather, Duan Wei, was the governor of Zhoutao, He, Gansu and Wei prefectures.

His father, Duan Wenzhen, was Minister of the Ministry of War of the Sui Dynasty. He died on the way to conquer Liaodong.

And Duan Lun himself is also famous for his chivalry, and was appointed as the left guard by Emperor Sui.

At that time, Li Tang had not raised his troops, and Duan Lun's identity was originally a good match for Princess Gaomi, but because of Li Jiancheng's relationship, Li Shimin had a grudge at first.

But after the Li Tang uprising, Duan Lun gathered more than 1 soldiers and horses in Lantian, which played an important role in conquering Chang'an.

After that, Duan Lun followed Li Shimin all the way to the north and south, conquering the picky Li Shimin with his actions.

It also made Li Shimin admit this brother-in-law.

Later, Duan Lun volunteered to recruit and pacify Bashu, and let Bashu begin to pay tribute to the Tang Dynasty in the seventh year of Wude.

After the pacification of Bashu, Duan Lun did his own thing, setting up officials and appointing officials.

Yizhou is a rich place, Duan Lun has the power of life and death, and his attitude towards superiors and subordinates is casual, which offended many people.

So someone accused him of treason.

The imperial court sent people to investigate but found no evidence, but just in case, he was transferred back to the capital.

After Duan Lun returned to Chang'an from Bashu, although he was appointed as secretary supervisor, he practiced the Tao behind closed doors every day and did not communicate with others.

Such a situation gave those who harbored resentment towards him another chance to participate in his book.

It is said that Duan Lun is venting his dissatisfaction with the court in the name of cultivating Taoism.

Seeing such participation, Li Shimin was angry and funny.

Duan Lun, he understood.

His brother-in-law is open-minded in nature, informal, and his favorite thing is novelty.

Once you encounter something new, you must figure it out.

Now I practice Taoism behind closed doors every day, and it's nothing more than my interest in it.

'Perhaps my brother-in-law will become interested in Yuer's cement. '

Li Shimin also didn't want Duan Lun to have nothing to do at home every day, so he immediately wanted to let him out for a walk.

"Come on, come to Ji Guogong's mansion for me tomorrow morning, and let Ji Guogong go with the people from the Ministry of Industry."

After deciding to let Duan Lun join the study team, Li Shimin randomly selected a few people from the Ministry of Industry, and he was able to confirm the candidates for this study group.

Early the next morning, when the messenger eunuch appeared in Duke Ji's mansion, Duan Lun was meditating.

"Cement? What's that?"

Sure enough, after hearing Li Shimin's will, Duan Lun became very interested in cement.

Then, after the eunuch gave a superficial explanation, Duan Lun was even more astonished.

"How could there be such a magical thing in the world!"

"To turn clay into stone must be the means of a god."

"It's ridiculous that I even sent people to search the famous mountains and rivers to find the immortal teacher, but I didn't expect such an expert to exist in Chang'an City."

After finishing speaking, Duan Lun anxiously followed the messenger eunuch all the way to the Shence Mansion.

Here, he met a group of people from the Ministry of Industry.

"Mr. Ji, good morning!"

When these people were told to learn how to use cement, Qu Tutong, Minister of the Ministry of Industry, specifically told them to supervise the restoration of the fortress.

Don't let Li Shimin's people have any quality problems because of rushing to work.

Although Qu Tutong was not worried about Li Shimin's tricks, he was afraid that the people below would play tricks in order to win the favor of the above.

At the same time, Qu Tutong was also a little curious about Li Shimin's new method, so he specially told these people to study hard.

So these people also arrived very early today.

However, after Duan Lun and others arrived at Shence Mansion, they did not see General Shence Li You himself.

The person who received them called himself Changshi Liu Ji.

Although he didn't see Li You, Duan Lun was not angry with Liu Ji's attitude.

"Liu Changshi, where is that cement?"

Duan Lun asked anxiously.

"Ji Guogong, our lord has ordered, please follow me now!"

Liu Ji said calmly.

Soon, Duan Lun saw that several truckloads of cement had been installed in the backyard of Shence Mansion.

Seeing these gray powders, Duan Lun was a little confused.

"With these powders, clay can be used as stone?"

Liu Ji smiled slightly. He received Li You's order to teach these people how to use cement.

Although he doesn't quite understand the principle of cement, there is no problem in using and explaining it.

Immediately, he patiently explained: "Yes, these are cement."

"These cement powders need to be mixed with water and then added with sand to repair the fortress."

"When the cement comes into contact with the masonry, it makes the masonry firmly stick together and becomes indestructible."

"The strength of the cement wall is dozens of times stronger than the original wall of the fortress!"

Duan Lun and the Ministry of Industry officials gasped at the same time.