Glancing at the dagger in his hand, he felt still a little dissatisfied, still not strong enough, and not sharp enough.

"There are all kinds of minerals in open-pit mines, but unfortunately I don't know the ratio of alloys, and even if I do, it is impossible to grasp it very accurately, and if the ratio is not right, the alloys will be deviated, and it is very likely that a lot of iron ore and copper ore will be wasted."

He sat on the stone pier and watched the blacksmith clanging to forge an iron ingot, until dozens of times later, there were very few impurities in the iron ingot, and then he began to forge according to the model of the knife carved out by Chu Nan, and the folding forging method was used in the middle.

But this is the first time to forge a long knife, and I want to use all the methods at once, which is basically a dream, so I can only come step by step, first familiarize myself with the steps of forging Tang knives, and then improve step by step, so as to waste as little steel as possible.

Because there was a chief staring at the side, the blacksmith did not dare to be sloppy in the slightest, several people took turns to forge, even so, it took three days to create a Tang knife, the blade is two fingers wide, six feet long, there is no arc, the tip of the knife is forty-five degrees arc back, there is a bulge left at the handle, the handle is two feet long, the thickness of the egg, you can hold it with one hand and both hands, and now there is only the blade left.

This is already the third Tang knife, the first two have been scrapped, only this one is qualified, Chu Nan asked everyone to write down the appearance of the knife, let people continue to forge, at least a hundred must be created, as for the production tools, the requirements are not so strict, let some other apprentices be responsible for forging.

Without waiting for Chu Nan's command, a man in his thirties picked up the Tang knife that had cooled, came to a stone and began to sharpen the knife.

Because he was angry when he looked at the way the man sharpened his knife, where was it like sharpening his knife? Have a grudge against stones, right? What does it mean when you cut stones with a knife?

Chu Nan took the Tang knife, and he felt really heavy, at least six or seven catties, such a heavy knife can only be used by a well-trained and strong person, if he just came here, he can't use it at all, as he stays in this world for a longer time, he also becomes strong and strong, this kind of seven or eight catties Tang knife is very suitable for him.

Pick up the Tang knife, drip some water on the stone, hold the ends of the knife with both hands, press it on the stone a little harder, and then start to pull back and forth, rubbing the blade hard, and by the way, rubbing the blade again, the original black blade became brighter.

It took more than two hours of grinding to stand up satisfied, the body of the Tang knife was shiny and shiny, the blade was extremely sharp, and the tip of the knife flashed with a piercing cold light, which made people can't help but feel numb in their scalps.

Chu Nan held the hilt of the knife with both hands and tried to swing it a few times, and several bright lights flashed in the air.

The others hurriedly dodged back, Chu Nan directly turned into a god in their eyes, and this kind of knife can only be danced by a god, and only a god knows how to make it.

"This is definitely the first knife in the world, mother." Chu Nan was very excited in his heart, this is the Tang knife in his hand, can he be excited?

"You all know the whole process, the next step is to speed up the production of Tang knives, first make a hundred and hand them over to me, this kind of knife can only be used by big contributors, ordinary people are not allowed to wear and use it privately, do you know?" Chu Nan thought of a way to stimulate the soldiers of the army to fight bravely, that is, to treat them differently, which was also an idea that he only had after seeing Tang Dao.

Shi naturally wrote down Chu Nan's words and instructed him to go on, as for other things, it was relatively easier than making a Tang knife, and it was naturally not difficult to get up early in the morning.

"Okay, you guys come with me to see the power of the Tang Knife." Chu Nan asked people to bring the tree stump, Black Mountain, and some high-ranking military officials to watch the power of the Tang Dao, this is an excellent opportunity, only if they see the power of the Tang Dao, they will do everything possible to get one, but to get the Tang Dao, there is only one way, battle exploits.

When everyone arrived, Chu Nan led everyone to a tree the thickness of an arm, and asked with a smile, "You all have bone knives or stone knives, right?" Who has the ability to cut down this little tree with one sword? Stump, you come and try. ”

As soon as the tree stump heard this, he immediately began to scratch his head, he knew the power of the stone knife and the bone knife best, it was impossible to cut such a thick small tree, even if the knife was broken, it was impossible to cut the small tree.

"Has anyone else done it with a stone knife or a bone knife? If I can do it, I will be rewarded. "It's a pity that no one stands up even if they use the temptation of heavy rewards, because it is impossible, and even if they come out and give it a try, it will be a shame.

"Do you think this knife can do it?" Chu Nan raised the Tang knife with one hand and looked at it carefully, and the surface of the knife on it could reflect his blurred face.

"Probably can, right? I believe in the chief. The stone immediately slapped a sycophant.

"We strongly believe in the chief." The stump and the black mountain nodded without hesitation, without a trace of doubt.

"Grass, there's no discipline at all, you're so sure? I don't even know if I can cut it, you know? Chu Nan burst into a foul word, because these guys are so shameless, if he keeps chopping, wouldn't it become a joke?

"I don't think it's likely, how can there be such a powerful thing? Isn't that an artifact? A young officer looked at Tang Dao suspiciously, although he didn't know what this thing was, it was not easy to make the chief so solemn, but he still didn't believe that he could cut down such a thick tree with one sword.

"yes, I'm not convinced." Immediately, more than a dozen officers echoed, they didn't want to pat themselves, but they felt that it was impossible to cut off the small tree with a knife, this was still in the face of the other party is chief, otherwise, they would have turned around and left, it is better to train soldiers with this kung fu, how can you have kung fu to accompany you to fool around?

"Well, that's right, you have to be skeptical, even if you are the chief of our city, you can't blindly believe it, you guys are very good." Chu Nan showed a hint of a smile and looked at a few people with satisfaction, otherwise it would be really difficult to pretend to be this force.

"Cao, you're not the first Skyfire Clan, are you? How dare you doubt the chief? Want to die, don't you? When the tree stump heard this, he was immediately unhappy, and glared at the people: "You will know how wrong you are in a while, damn, the chief's words dare to doubt it." ”

"Can you fucking shut up?" Chu Nan couldn't wait to kick the tree stump and the black mountain out, what the hell are you talking about? Isn't it to destroy Lao Tzu and pretend to be forced?

The tree stump and the black mountain hurriedly ducked back, still without a trace of doubt in their eyes.

"I'm also looking forward to it, let's see the power of the Tang Knife." Chu Nan clenched the Tang knife with both hands.

He made a few strokes at the trunk of the small tree, and finally slashed at the trunk of the small tree at an angle of 45 degrees.

"Poof......