The winter in Xudu is really cold.

Cao Ang returned to Xudu and presented the drawings of the kang to Cao Cao. Cao Cao then called Liu Ye and others to discuss, and Cao Ang also participated in the incident.

The kang is a good thing, and there is no dispute. However, other areas in the Central Plains cannot use the Xuzhou model to lay the kang.

Because it is too expensive, Cao Ang has many industries that can support Xuzhou in doing this, but Zhongyuan cannot do it.

Cao Cao sighed in his heart. His son's ability is excellent, his ideas are excellent, and he brings great benefits to the people. However, in addition to the industries he created in the past few years, he has been burning money in recent years!

"Zi Xiu," Cao Cao waved his hand, "The method of laying a kang in Xuzhou is difficult to use in other places in the Central Plains. Do you have any other plan?"

Cao Ang bowed and said, "Father, I do have another plan, but this plan has some flaws. I am afraid that the poor people will spend a lot of money."

Cao Cao breathed a sigh of relief. If it were just this, it would not be much of an obstacle.

"Zi Xiu said it."

When Cao Ang heard this, he knew that Cao Cao must have been looking at the big one and letting the small one go.

"My method is called 'hierarchical system'," Cao Ang looked at everyone present, "first let the craftsmen of the prefecture learn how to build a fire kang, and then let the craftsmen of the prefecture gather each county to teach them. Each county then gathers his craftsmen in charge of each township, and each township then gathers his craftsmen in charge of each village."

Cao Ang looked at the lit expression in front of everyone and smiled: "Although this cannot ensure that every household can get the benefits of a fire kang, it can make every village know the method of a fire kang."

Cao Cao smiled and praised him for his goodness. He thought Cao Ang's method had many disadvantages, but he didn't expect it to be this good method.

One of them bowed and said, "Although this method is good, it is suspected of leaking secrets. If it is obtained by others, wouldn't it be?"

Cao Ang looked at him and was the prime minister Geng Ji. Others were naturally the princes except Cao Cao.

Cao Ang smiled and said, "The kang is the thing of the people in the world. A dead thing can survive countless lives, so why should we care about who is in the hands of whom?"

Geng Ji's face turned red and he retreated slowly.

Cao Cao comforted him, "Since this is the case, Zi Yang, you will arrange this matter."

Liu Ye smiled and responded to this matter. Everyone retreated, but Cao Cao and Cao Ang sat down and talked.

"Zi Xiu, is Ma Chao brave?" Since Cao Ang's conquest, Cao Cao has not led his troops in person for a long time. Ma Chao has joined forces to invade the border and Cao Ang failed to take his head. Cao Cao couldn't help but become a little interested in Ma Chao.

"It is courageous, but it is just that there is no wisdom."

Cao Cao nodded seriously, brave but not wise, not a big concern, "How about comparing with the tiger?"

Cao Ang pondered: "Ma Chao has no Chen Gong."

"You must not be careless in this way. Lu Bu did not listen to Chen Gong's words back then. If it were not for several generals to rebel, it would be difficult to defeat him." Cao Cao shook his head, remembered Chen Gong, and sighed again.

Cao Ang smiled and said, "Don't worry, Father, Ma Chao has already left his arm."

Cao Cao was surprised by it, "What?"

Cao Ang then talked about Pang De's affairs and praised his courage. Cao Cao became interested, "How about Zhongkang?"

Cao Ang pondered, "It's hard to distinguish between the top and the bottom." This is to take care of Xu Chu's face. After all, Pang De is now at a time of courage, and Xu Chu protects Cao Cao for many times and has not fought on the battlefield for a long time. When Cao Cao was a little inferior, he also noticed some clues.

"Ponde is so brave?"

Cao Ang smiled and said, "If my father doesn't believe me, I can call him to come and see him."

Cao Cao agreed to it, and Cao Ang then sent someone to call Pang De.

Soon after, people reported that Pang De had arrived, and Cao Cao hurriedly ordered him to enter the mansion.

When Pang De arrived at the stairs, Cao Cao looked at him. He was wearing general armor and was majestic. His face was not as fat as other warriors, but he had a different temperament.

Cao Cao was overjoyed, "Make the wise and be a real famous general."

Pang De thanked him, Shi Dianwei was on the side, his hands were itchy, and he was eager to try it.

The father and son looked at each other, Cao Ang was determined to show Pang De's use, and Cao Cao also wanted to see Cao Ang's courage. Both of them knew what this look meant.

Cao Ang smiled and said, "Ling Mingming is good at using swords, and his sword skills are no less than Guan Yunchang."

Cao Cao was even more happy. When Guan Yu was in Xudu, he loved Guan Yu's courage. Now Cao Ang talked about Pang De's courage, how could he not like it?

Dian Wei couldn't help but praise Cao Ang, "Can General Pang pass the next day?"

Pang De bowed and responded.

Cao Cao smiled and said, "Why do you have to go there next day? Today, you and the two of you will be there, okay?"

Cao Cao followed the situation and the two of them refused, sorted out their clothes and armor and went down the steps.

"General Dian, weapon or?" Pang De asked tentatively.

"If you use weapons to use them regularly, you will be successful. Don't hold back!" Dian Wei smiled, holding a pair of halberds.

Pang De also laughed. Because Pang De did not bring his weapons, Cao Cao specially ordered Pang De to enter his hidden military tent and chose a handy weapon.

Pang De thanked him and chose a golden sword. Cao Cao laughed and praised Pang De's power.

The two stood still, Pang De dragged his knife and Dian Weiti's halberd, with a solemn face.

"please!"

"please!"

The two moved, Pang De twisted the knife rod and stepped forward quickly with the blade edge. Dian Wei shouted angrily, causing the two halberds to hit the blade!

The two of them chose to fight head-on.

"Bang!"

Dian Wei took a step back, and Pang De took a step back.

"Good strength!" the two shouted together.

Cao Cao and Cao Ang looked at each other, and Cao Ang saw the surprise in Cao Cao's eyes.

Because the two fought, Cao Cao and Cao Ang were not easy to talk to, so Cao Cao could only convey his meaning with his eyes.

"Son, this Pang De is wonderful!"

“…”

The two of them fought until fifty rounds and were not even separated. Cao Ang saw it clearly, and both of them had a fine cold sweat.

The two of them started to fight and knew that they were all masters. If they didn't hold back, the knife was fatal and the halberd was killed. For a moment, the leaves that fell from the trees around them had swollen under the guidance of the two of them.

When they fought, both of them were red in their eyes. Cao Ang did not dare to speak out, for fear that they would cause them to distract themselves from their mistakes and hurt one person.

As for the two men who were trying to stop, let’s forget it. The two are now in a state. Cao Ang has not warmed up yet, so he rashly goes in, afraid that he will be beaten to death.

Only after the two of them were separated by several steps and there was a safe distance, Cao Ang dared to speak out, "Live, two generals."

The two were stunned and then stopped. Cao Ang bowed and said, "Father, the courage of the two generals is not different. If they fight again, they may be damaged."

Cao Cao laughed, "What my son said is so true, so he stopped and came to hold a banquet, and took this opportunity to entertain the two generals."

The servants agreed, Pang De and Dian Wei thanked Cao Cao.

Pang De held the big knife in both hands, "I thank the Prime Minister."

Cao Cao went downstairs and said with a smile, "Give the treasure sword to a hero. Ling Ming is so brave, how can he not have a treasure sword? This sword is my gain from fighting in all directions. Today I will give it to Ling Ming!"

Pang De dared not accept it and said he would say goodbye.

Cao Cao said, "Let Ming, don't refuse. Isn't such a treasure knife covered with dust in my treasury?"

Pang De pondered and went to see Cao Ang. Cao Ang nodded with a smile, and Pang De agreed happily.

Cao Cao looked at Cao Ang sadly, and Cao Ang pretended not to see him.

The four of them entered, and the food and drinks were already on. Everyone was feasting and returned with great pleasure.

The matter of the kang has been assigned, so Liu Ye hurriedly summoned the craftsmen of various government agencies to teach them all the methods of making the kang.

After all the craftsmen in each prefecture learned it, Liu Ye tested his quality after he was finished. After passing the qualification, Liu Ye let everyone go back.

Now that winter is coming, it is not the time to be bitter and cold, so it is still time.

The matter of a fire kang is of great importance, and it is so great that it involves thousands of lives. Although life is not worth a lot in troubled times, a qualified superior always has to devote a lot of energy to the lives of the people.

Therefore, Cao Cao sent the soldiers of the school office to supervise the matter.

The cold wind in Xudu was warmer under the blow of the kang.

Some Confucian scholars' remarks against Cao Ang were also drowned out by the praise of the people after laying the fire kang.

In order to prevent being scolded by the public, some Confucian scholars have swallowed their words into their stomachs.

The first kang in Xudu City was placed in the room of Zhen Mi in Cao Ang’s mansion.

Cao Cao and Mrs. Ding loved their grandson without any ambiguity. When Cao Ang took a few craftsmen to build a few kangs for the Prime Minister's Mansion, Cao Cao first asked if there was any in Cao Ze's room.

Then Zhen Mi had the first kang in Xu Ducheng in her room.

The second and third ones were built in the Prime Minister's Mansion.

But Ma Chao returned to Xiliang with his personal guards with anger. Ma Teng was furious when he learned that Ma Chao was not only defeated, but also lost Bingzhou.

Ma Chao came to see Ma Teng with an angry look mixed with a depressed look. Ma Teng had a cold face, "You are a traitor, you have lost Bingzhou, how can you come to see me again?"

Ma Chao held his anger: "Father, this is not my fault. Han Sui is treacherous and Pang De betrayed me. How can I fight against the turmoil in the three sides?"
To be continued...