The eldest grandson Chong's little man on the Zhuangzi lived a very comfortable life, working only four hours a day, working eight hours, wearing thick work clothes, and following Master Zhao to study and improve the method of smelting steel.

Now the working environment is very poor, a lot of coal ash and dust, the eldest grandson Chong spent a high price to buy cotton gauze to make masks, he doesn't want to get silicosis at a young age. At the beginning, everyone didn't care, only Changsun Chong wore a mask from beginning to end.

Changsun Chong didn't want to let the hard-working and simple craftsmen's body deteriorate and then treat, at that time, the treatment could only relieve their pain and delay their death, there was no way to eradicate the root cause, the only thing that could be done was to prevent it in advance.

Later, Changsun Chong had no choice, so he had to use the method of fines, who did not wear masks, and who was fined. The craftsmen were counting on these wages to pass, and when they saw that the eldest grandson was really coming, they had to obediently put on masks.

"Eldest grandson, although it is coal used, the fire is very strong, but the temperature is still a little smaller." Master Zhao, whose original name was Zhao Ergeng, was about forty years old, and looked at the sparks worriedly.

Changsun Chong looked at it and said, "Uncle Zhao, don't worry, coal is already much better than firewood, and we can't find anything that burns at a higher temperature than coal for the time being." Then we can only think of a way from the stove and the bellows. ”

Zhao Ergeng nodded and said, "That's the only way!" ”

"It's late today, why don't we go back and rest early, think about it, and we'll come back tomorrow to get the stove and bellows again." Eldest Sun Chong was shocked in his heart, but he was not sure if it could be done, and was ready to go to the apocalyptic space to ask.

Zhao Ergeng looked outside, the sun had already set, and he could only do it here.

The eldest grandson went to the apocalyptic space at night to ask for advice, and got an improved stove and bellows, the thickness of the furnace was increased, and the seal was strengthened; The bellows are larger, and the exhaust volume is twice as large as before; The stove is also twice as big as before, and the temperature can be reached.

Zhao Ergeng was very excited, looking at the molten iron that was burning as red as the sunset, and gradually adding some trace elements, so that the iron could be refined into fine steel and prevent oxidation. Because there are impurities in the trace elements, they add more and more components, and then test how many cast steel embryos are the most tough and hard.

Cheng Chumo and the others have the strength, and on a cold day, they are bare, holding a big hammer, beating and forging thick patches again and again.

Changsun Chong looked at the people in the yard striking iron, although there was no efficiency of a big machine, but so many people were helping to work naked, shouting trumpets from time to time, cheering up, and there was an exciting atmosphere.

However, although the touching fighting spirit can motivate people to work harder, it cannot fundamentally improve efficiency, and the first thing to solve now is the problem of power, using the process of using machines instead of forging. Now there is firepower and water power, and Changsun Chong is not sure which one is simpler for a while.

But just when he was depressed, when he went out for a walk, he saw that there was still ice on the river, and the eldest grandson was embarrassed, if you want to use water forging, there must be a flow of water, but it is still frozen here, even if it does not freeze in the summer, the water flow here is very slow, and it cannot provide enough power at all.

Changsun Chong temporarily decided to use firepower, so the development of a simple steam engine was imminent.

Just when Changsun Chong was busy learning about the simple steam engine, Zhao Ergeng and others had already artificially created the first Tang knife with a length of one meter two, a width of three centimeters, and a bit of arc of the blade. Although the thickness is only one centimeter, the toughness and hardness are dozens of times higher than that of previous weapons. The most daring thing is that after the blade is opened, it flashes white, and even white to a little bit of a faint blue light, which makes people's hearts palpitate.

Cheng Chumo was the closest, snatching this sword from Zhao Ergeng's hand, the weight was not as heavy as his plate axe, but it was more terrifying than his swarthy plate axe.

"Karma, take out the treasure knife that your grandfather will give you, and we will compete!" Earlier, Li Yexu often took a black magnetic steel sword given to him by his grandfather, and now the long sword made by Xin looks good, so it is better to try Li Yexu's sword.

Although Li Yexu felt that this knife was very sharp, it was still not good for his black magnetic steel sword, which was as sharp as clay, so he asked people to take their own sword and compete with Cheng Chumo.

"Bang" twice, the two weapons collided violently, and a lot of cremation burst out, and both of them used seventy percent of their strength just now.

When Li Yexu saw that there were two big gaps on his black magnetic steel sword, he grew his mouth in surprise, and after being shocked, his face was full of distress, this was the sword that his grandfather rewarded him after he had a small success in martial arts, but now it has been broken twice. If my grandfather had known, he would have been angry.

And Cheng Chumo took a closer look at the treasure knife in his hand, except for two small white marks, the rest of the place was intact, and hurriedly ran to the stunned Li Yexu, and shouted: "Good girl, what Lao Tzu is holding in his hand is the treasure knife in the treasure knife!" ”

Li Yexu's face was bitter, and when he saw that there were only two white marks on Cheng Zhiliang's sword, his face was ugly.

Of course, the eldest grandson Chong saw that Li Yexu was distressed, and this Li Yexu also contributed his sword to test the newly created sword, although Li Yexu wanted to show off his sword, but objectively made a contribution. The eldest grandson Chong felt the need to compensate Li Yexu.

"Karye, don't be sad, I will let the master use our steel to make you a sword that is exactly the same as in your hand." The eldest grandson Chong comforted and said, this can only be done, the sword is useless and cannot be restored.

Li Yexu sighed and said: "This sword can only be hung on the wall as a souvenir, eldest grandson, you have to talk and cast an identical one for me." ”

Eldest Sun Chong nodded and said, "The guarantee is the same!" ”

"Brother Chongxian, I want it too!"

"Brother eldest grandson, don't forget that my brother wants it too!"

As soon as these gentlemen saw that there was a hole to drill, they were suddenly anxious, good knives and horses, no man could resist this temptation.

"Okay, everyone has a Tang knife, and the virtuous brother also has a Tang knife! When the time comes, several of our brothers will wear the same swords and go to the battlefield together, which must be very stylish. "When the eldest grandson Chong saw that so many people wanted it, the surname Suo was one by one, and everyone was happy.

"That's the right thing, the strength is not in vain, just with our treasure knife, sharpening iron like clay is pediatrics, if you cut off the head, it is not as labor-saving as cutting radish!" Yu Chi Baolin said with a smile, snatching the Tang knife in his hand at the process, his eyes lit up.

The Cheng Chumo brothers used a very heavy plate axe, but if they had a treasure knife hanging on their waists, it would not be cumbersome, so they were naturally very happy; Yu Chi Baoqing, Yu Chi Baolin uses a double mace, but no one has too many good things, not to mention the beautiful shape, it must be very graceful to hang on the waist.

The eldest grandson Chong did not forget to give Li Er, Li Chengqian, Li Ke, Li Tai in the palace, and of course did not forget to give his father the eldest grandson Wuji, got one, and engraved their respective names on the knife, and paid out of their own pockets, so that people made a scabbard according to the size and hung it on the waist, which was very magnificent.

When the Tang knife glowing with cold light, packed in a delicate scabbard, was sent to the palace.

Li Chengqian, Li Ke, Li Tai, holding the knife and not letting go, no one is allowed to touch it.

Li Chengqian and Li Ke are each older, holding Tang knives, barely looking pleasing to the eye; But Li Tai's small ball is not much taller, not even much taller than Tang Dao, so he can't hold it, so he can only drag it away.

Li Er arrived at the Lizheng Hall and heard a quarrel with children inside.

"Queen Mother, why do the eldest brother, third brother, and fourth brother have them, why don't I have them!" Li Zhi's mouth has been sharp, and he no longer squeezes out two words when he speaks, and he is envious when he sees that his brothers have a very Wei Feng treasure knife, and he does not let go of Li Tai's treasure knife.

Empress Eldest Sun had a little headache, and said softly: "You are still young, when you are older, the queen mother will also make you a treasure knife, okay?" ”

Li Zhi thought about it, shook his head, and said, "It's not good, the fourth brother is not big, and he is not as tall as a sword, why does he have it?" ”

Empress Eldest Sun was anxious, her face sank and she said: "Cheng Qian, Ke'er, Qingque, for your mother to help you keep the Tang knife first, and then return it to you when you are over fifteen years old." ”

"Don't!" Li Chengqian, Li Ke, and Li Tai spoke in unison.

Li Zhi's heart is dark, he doesn't, his eldest brother, third brother, and fourth brother can't have it, and he is greedy.

"Queen Mother, I want it too! I also want a sword with my name engraved on it! Li Zhi said aggrievedly, tears flashed in his eyes, and his heart softened when he saw the eldest grandson.

"Okay, I'll promise you for a while, I'll ask your eldest cousin to make one for you, but I'll keep it for you first, and I'll give it to you when you're older!" Empress Eldest Sun whispered to Li Zhi.

Li Zhi knew that he was indeed very young, and he had already asked for a knife anyway, which was enough, so he nodded and said, "Okay!" Mother for me to keep! ”

Li Er came in, and finally knew why the four children were screaming, because he was also attracted by the beautiful posture of the knife, so he pulled out the knife in Li Chengqian's hand casually, picked up a tissue paper on the table, and before he blew it, the paper had been divided into two, and the incision was very neat.

Li Er's eyes widened in surprise, and after a long while, he said, "Your knife is kept by me!" ”

Li Chengqian and Li Ke didn't dare to speak, Li Er has always been very strict with the two of them, but he was very tolerant of Li Tai and Li Zhi.

"Dad, you have one too!" Li Tai muttered quietly, "You can't ask for us." ”

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