PS: At the request of the book friend Xiaolou, I will upload another chapter today. Not much to say, Lao Yu still has to spend the night coding to prepare tomorrow's chapter.

Li Min curiously followed Li Ke into the small door, and found that there was a whole other world inside. It was a room similar to a warehouse, but it was not large in size. Apart from two rows of wooden shelves for placing items, there were basically no other furnishings.

Li Min stepped forward and took a closer look at the items on the shelf. He found that these items were either exquisite or clumsy, and some were still semi-finished products. It was estimated that these were items made by the craftsmen in the prison. Suddenly, Li Min's eyes were attracted by a group of pottery.

, this group of pottery is composed of ladies, horses and camels, and these pottery are all colorful, whether they are characters or animals, they are all vivid and colorful, the reason why Li Min noticed them is because he saw a set of Tang Sancai in his previous life

picture, and this set of pottery is almost exactly the same as the one in the picture.

"This is the legendary Tang Sancai. It is indeed well-deserved!" Li Min said to himself with a face full of obsession. Tang Sancai was a popular antique collection in later generations, and the price was even ridiculously high. It could even fetch tens of millions. If it were sold,

This group of Tang Sancai was auctioned by later generations, and it is estimated that it will definitely fetch a sky-high price of hundreds of millions.

"Sixth brother, why are you always staring at those piles of underworld artifacts, don't you think it's unlucky? Come and see the good things you found for me!" Just when Li Min's breath was about to leak out, Li Min raised his hand next to the shelf.

shouted while pointing at a cylindrical object.

Hearing the word 'underworld weapon', Li Min immediately became frustrated. Tang Sancai was indeed used as a burial artifact, and it was not worth much now. He had just paid it back for a long time, but Li Min was quickly replaced by Li Min.

The thing in Ke's hand diverted his attention.

"This...couldn't this be the legendary fireworks?" Li Min looked up and down the arm-thick bamboo tube in his hand. This was what Li Ke found just now. The upper and lower bamboo sections of the bamboo tube were preserved, and there was no clue what was inside.

Something was placed to make the bamboo tube very heavy. There was a small hole drilled in the middle of the bamboo joint, and a rope-like thing passed through the small hole. The more Li Min looked at it, the more familiar it became. This thing was similar to the fireworks that later generations used to celebrate the New Year.

There is almost no difference.

"That's right, these are the fireworks developed by the director. I don't know how effective they are. Why don't we set off one and have a look?" As soon as Li Ke became interested, no one could stop him. After he finished speaking, he didn't care whether Li Mintong agreed or not.

A few fireworks arrived in the front hall.

"Tsk~" As Li Ke lit the fuse, and then quickly retreated, after a while, he saw a burst of green smoke coming out of the bamboo fireworks, followed by a burst of red and green sparks, which lasted for about a minute.

It looked like it was about to stop after the gunpowder inside burned out.

"Well, it's really good. It's much more beautiful than last year's fireworks, and it lasts longer. It seems that the supervisor has put in a lot of effort." Li Ke nodded with great satisfaction.

Li Min next to him curled his lips. In future generations, even children would probably not be willing to play with the fireworks in front of him. Even in Li Min's view, these were not real fireworks at all. The fireworks in his impression should be

It's the kind of fireworks that shoot into the sky with a salute and then explode to cover half of the sky. That's the real fireworks.

Although the fireworks in front of him were not worth mentioning, they reminded Li Min that gunpowder had appeared as early as the Jin Dynasty, but until the Tang Dynasty it was only used to make fireworks. Firecrackers had not even appeared, let alone applied to it.

The battlefield is on. The emergence of gunpowder marks the official entry of hot weapons onto the stage of history, and then gradually replaces cold weapons, directly changing the form of human warfare. If this good thing is only used to make fireworks, it will be too wasteful.

Got it!

It seems that there is a chance to improve the gunpowder. Li Min secretly made up his mind that the current gunpowder can only be used to make fireworks. There is probably something wrong with the formula and it cannot reach the optimal ratio of gunpowder, so it has very little power.

, this is not difficult for Li Min. Thanks to the education system of later generations, Li Min learned the best ratio of gunpowder when he was in middle school.

While Li Min was thinking about gunpowder, Yu Wenhu walked in from outside the hall. He was slightly startled when he saw the fireworks set off by Li Ke, and then smiled and said: "Your Highness is very interested. This improved firework has just been delivered to me, and it's so beautiful."

There is room for further improvement, and I will give some to your house when it is ready."

"Thank you so much, Brother Yuwen!" Li Ke was not polite and returned the favor generously.

Yu Wenhu smiled slightly, then turned to Li Min and said: "Your Highness, the manpower and materials are ready. Please move forward!"

"Brother Yuwen, you're welcome. From now on, you can just call me Liuyang like my third brother. It's too awkward to call me Your Highness." Li Min walked up and said with a smile.

"This..." Yu Wenhu was slightly startled. His background was not comparable to those of Li Yong and Cheng Huailiang, and it was the first time he met Li Min. Calling him Liuyang was a bit superficial.

"Brother Yuwen, please don't refuse. Liu Lang and I are not outsiders. We will deal with many places in the future. We will call you Your Highness all the time. If you don't bother me and Liu Lang, we will be annoyed." Li Ke also laughed.

He advised.

"Haha, that's the case, then it's better for me to be respectful than to obey my orders." Yu Wenhu saw that Li Ke and Li Min both had sincere faces, so he stopped refusing, "Then please Liu Lang and Brother Ke come with me for inspection.

Once we have the manpower and materials, if there is no problem, we can start refining immediately so that Liu Lang can deliver the goods as soon as possible."

"Okay, brother Yuwen, lead the way!" Li Ke and Li Min said at the same time.

The three of them passed through several courtyards until they reached the westernmost courtyard of the General Prison, next to the city wall. As soon as they entered here, Li Min smelled a pungent smell of lime, and in the courtyard

Beside the wall, there are several earthen kilns. It seems that this yard was used to bake lime.

"Meet your two highnesses!" As soon as the three of them entered the courtyard, they saw a ninth-grade official wearing light cyan official uniforms and his assistants kneeling down to greet them. Judging from the rank of officials in the Tang Dynasty, just from the official uniforms

It can be distinguished that the third grade and above are purple; the fourth grade is dark crimson; the fifth grade is light crimson; the sixth grade is dark green; the seventh grade is light green; the eighth grade is dark cyan; and the ninth grade is light green.

"Everyone, get up!" Li Ke waved his hand and asked them to get up very kindly, and everyone hurriedly thanked them.

Yu Wenhu stepped forward and pointed at the ninth-grade official who was in his forties or fifties and introduced: "Brother Ke, Liu Lang, this is Bai Qing, the right principal. He has always been responsible for refining lime. Bai Shucheng is the supervisor."

He has been working for more than 20 years and is a loyal and reliable person. Therefore, he mainly led people to assist Liu Lang in the cement refining work. In addition to the original lime craftsmen, these people behind also had burners transferred from other departments.

Porcelain craftsmen are all skilled, honest and reliable people."

"Your Majesty, Bai Qing, meet your two highnesses!" Bai Qing was very discerning. Hearing Yu Wenhu introduce himself to Li Min, he immediately stepped forward and saluted again. He has been a ninth-grade official for more than 20 years, and has been

He didn't get a promotion either. This time it was Yu Wenhu who promoted him and gave him this great opportunity. If he could help Li Min complete the cement project, he would definitely have a share of the credit. His rank might be determined by then.

It can also rise a little higher, so I made up my mind to hug Li Min, the Liang King's thigh.

Li Min looked at Bai Qing and found that although this man had a dark complexion and thick hands and feet, if he took off his official uniform, he would be no different from the craftsmen behind him. He just had a pair of shrewd little eyes on his wrinkled face.

Blinking twice nimbly, he is obviously a nimble and clever person.

"Well, in the future, there will be Lao Bai Shucheng!" Li Min was very satisfied with this man. Looking at his appearance, you can guess that he is a craftsman and he is also very smart. This kind of person is not only practical in doing things, but also knows how to be flexible.

He is a creative talent.

Seeing that Li Min was so kind to him, Bai Qing was very frightened and could not even say that he did not dare. He was a ninth-grade official with a low background, and his status in the general prison was only slightly higher than that of an ordinary craftsman.

Where have you ever received such courtesy?

"Cheng Bai Shucheng, you now command the craftsmen to grind the limestone, clay, slag and gypsum into powder, then mix the limestone and clay in a ratio of 5:1, and add a small amount of slag powder!" Li Min looked at Yuwen

The materials prepared by Hu were found to be very good, so he gave instructions to Bai Qing who was following behind.

"Yes, I'll do it now!" After hearing Li Min's instructions, Bai Qing immediately took action, directing the craftsmen to run forward and back, apparently wanting to show off in front of Li Min.

The crushing of materials is an essential process for cement firing, and the dust raised is extremely harmful to the human body. Li Min could not leave, so the three of them were choked and coughed repeatedly. Bai Qing knew the opportunity and sent three wet strips.

They asked them to cover their mouths and noses with towels, which greatly increased Li Ke and Li Min's affection for Bai Qing.

After a while, the materials were ground into powder, and then under Bai Qing's command, the limestone, slag and clay were mixed according to the proportions Li Min said. The gypsum powder was set aside for later use, and then the mixed

The materials were put into the lime cellar for calcination. Li Min did not need to direct this process at all. Those craftsmen often played with fire and were much more skilled at calcination than Li Min. In addition, the calcination time was relatively long. Li Min and Li Min

Ke can't wait here, so Bai Qing will be responsible for the management and supervision of the following work. This is the benefit of being an official. You don't have to do most things yourself, and naturally there will be subordinates to do it.

Before Li Min left, he told Bai Qing a few more things to pay attention to. Bai Qing wrote them down one by one with a pen. This serious attitude made Li Min very satisfied. The three of them left the cement burning yard and came to the hall.

Li Min looked at the sky and said, "Brother Yuwen, it's still early, and thanks to your help today, how about we find a place to have a drink?"

As soon as he heard that he wanted to drink, Li Ke certainly wouldn't object and tried his best to encourage Yuwenhu to go, but Yuwenhu was a little hesitant and declined with an embarrassment: "Ordinarily, Liulang invites me, so of course I will go, but these days

Mr. Zhou, who is in charge of the General Supervisor with me, is away for business, and the entire General Supervisor is managed by my brother alone, so I really can’t leave."

Yu Wenhu paused here, then pointed at Li Min and Li Ke with a smile and said: "And today is really not a good time to treat guests to dinner. If nothing else, take a look at yourselves. Where do you still look like this?

A prince?"

After Li Ke and Li Min mentioned this to Yu Wenhu, they realized that their clothes were all in tatters. They had had a fight in the restaurant in the morning and had not yet come to change their clothes, and they even tore a few pieces on purpose.

There was a big hole, and the dust was all over their body, and even their hair was dusty. If they weren't familiar with them, they wouldn't be able to believe that they were princes with high status.

"Hahaha~, if it weren't for Brother Yuwen's reminder, I wouldn't have realized that I was in such a mess. If I entered a restaurant like this, I would probably be kicked out as a beggar!" Li Ke looked at himself and then at Li Min,

Then the two of them laughed together.

"That's it, then don't bother Brother Yuwen. When the cement is completed in the future, we must not get drunk with Brother Yuwen!" Li Min also said with a smile.

"Haha, I wish I could be invited by Liu Lang as a brother. I have long heard that the wines and delicacies of Prince Liang's palace are unparalleled, but I have never had the chance to taste them. I must have a good time when the time comes." Yu Wenhu said with a smile. Don't look at him in purple clothes.

He is a third-rank official, but firstly, the family strength is not obvious, and secondly, the general supervisor who presides over is not an important department, so he was not qualified to participate in the last Five Kings Banquet.

"Okay, I will prepare some food and wine by then and wait for Brother Yuwen in the mansion." After speaking, Li Min handed over his hands and then left together with Li Ke.
Chapter completed!