Knock knock knock and another day.

Knock and knock, and it's a day.

Two days passed without any changes, including burning, beating, and drizzling the powder.

The only difference is that the thing that turned into a gem when it came out of the furnace and turned into a brick when it was knocked out of the furnace has become very small at this time, only the size of a small arm, and it is several times smaller than the previous volume.

"It's boring......"

Fu Liu didn't know how many times he slept next to him, and he even felt a little that the sound of the blow was very helpful to sleep, and he was simply used to it.

The owner of the island has been watching it with relish.

Because it's been so long, everyone has actually forgotten about the disgusting stuff before.

And in fact, it was that mass that became what it is now.

It's just magical!

And the most amazing thing Lu Yu did was forging on the surface, but in fact it was no longer forging.

In the world of Lu Yu's previous life, almost everyone knew how diamonds came from, high temperature and high pressure, condensed the most common carbon in the world into diamonds, becoming the most fragile, but hardest, and also the most beautiful gem in the world.

The piece of metal in Lu Yu's hand has become different because of the beating again and again.

The method of microscopic control of things, coupled with Lu Yu's mysterious and mysterious beating, created all this.

Then, as the next day drew to a close, another change occurred.

That is, after Lu Yu turned it into a 'brick' state, he didn't throw it into the furnace again, and even extinguished the furnace, and then ...... It's just non-stop knocking, non-stop knocking.

After knocking for a while, it is also smeared with a low-temperature object similar to an ice cube to cool down.

Then continue to knock.

Everyone present, of course, didn't know what Lu Yu was doing.

Some people who know a little bit about forging think that Lu Yu is now shaping, and the current square is made into the shape of a sword.

And Lu Yu is really shaping.

But shaping is only one part, a very small part.

More importantly, this is called 'cold forging'.

There are two types of cold forging techniques, one is ordinary, one is extreme, one can be found everywhere, and the other exists only in legends.

Cold forging allows the metal to fade, magnetize, and thus increase elasticity and, to some extent, sharpness.

The most flexible blades in history have come from cold forging.

But that's not what Lu Yu has to do.

If he wants to do it, he will do that legend.

In the world of the previous life, there was also a substance called jadeite. It is also born under high pressure, and the raw material is naturally more complex than carbon alone, but ...... But it is formed at low temperatures!

The higher the pressure, the higher the temperature.

That's the truth.

How can the temperature be low, and there can still be great pressure? It can only be formed when the entire continental plate drifts and then collides with each other, and the perennial squeezing can squeeze out one high mountain after another, and the sea water keeps cooling and scouring.

So in this respect, diamonds can be understood as the fire of heaven and earth.

And jadeite is the effect of cold forging.

There was once a speculation.

If a certain substance has been calcined by fire and then cold-forged, will it become ...... Weird?

What exactly it will eventually become, and in what form it will appear in people's eyes, is really something that people are curious about, but no one can know.

And at this time, what Lu Yu wants to do is this thing!

First of all, the fire calcination, the non-stop fire calcination, and the back and forth burning and beating, not only let all the non-metallic impurities in it be eliminated, but also let so many kinds of raw materials completely fused together.

And the fire is calcined, so that the molecular structure inside has undergone some changes.

If you had a very powerful microscope at this time, you would have seen that there were many kinds of materials, each of which produced an atom and then arranged in a formation to become molecules.

All the molecules are arranged together in a very regular manner, so tightly that they seem to be unable to accommodate anything.

In this way, this fast 'iron' is no longer simply a certain metal or a certain substance, or even a simple fusion of those substances together, according to the current scientific theory, it is Lu Yu who uses known materials to create an unknown substance!

Then, it's cold forging.

Cold forging slaps that kind of spherical formation to the two-dimensional and three-dimensional phases, which can be called the existence of two points and five dimensions.

The result of this is that the metal is incredibly strong, and it is made very sharp.

Compared with this kind of mysterious ice and fire that no one can see, Lu Yu's shaping of this blade ...... It's a little too simplistic.

Yes.

This is the most unaesthetic blade Lu Yu has ever made.

A long one, with a bit of a curved front end, and then there's a 'sense' handguard that doesn't even play a protective role, and then there's a long, long handle, which looks long when held in both hands.

Lu Yu has forged blades in his life, in fact, they are all very beautiful, even Xiao Ruan's dragon tooth cicada wing scimitar, although it is just ordinary polishing, but there is actually a charm in it.

And this ...... In addition to being ordinary, it is ugly.

The peasants' woodcutters are probably more beautiful than this.

This practice made the people around him very puzzled.

Even everyone couldn't help but wonder if the white striped knife was forged by Lu Yu.

The gap between the two can no longer be described by the word "cloud and mud".

If it were in the world of a previous life, the people in it would be easy to describe.

One is a super big diamond, and the other is a piece of, and it's still a very smelly kind!

Then Lu Yu clapped his hands, sat down next to him, looked at the long knife in front of him that looked like the most ordinary iron bar, and nodded with satisfaction.

Everyone was quiet.

Long.

The owner couldn't help but ask, "That...... Xiao Yu, do you want to take a break?"

Lu Yu said: "Of course you have to rest." ”

"Oh......" The owner of the island breathed a sigh of relief and said, "It's okay, it's okay......"

But before he could finish speaking, Lu Yu said directly: "The forging work is completed, of course I have to take a good rest, I have been busy for more than two days, longer than I expected, really...... This time I'm really tired. ”

Then he pointed to the ugly long knife and said, "This is a work that I am quite satisfied with, not bad, it is still very good." ”

The owner of the island was stupid all at once.

Blankly asked, "You...... You said...... Say what?"

Lu Yu frowned and said, "What are you doing? Everything has been forged for you, why don't you take it away?"

"Take ...... Take it away? do it...... Done?"

The islander's voice trembled.

His first thought was that Lu Yu was playing with him.

But he also knew that a guy like Lu Yu wouldn't spend two days playing with himself, he wasn't that boring.

That...... What the hell is going on?

The owner of the island could barely hold his breath now, so he said, "That...... This hasn't started yet, I'm afraid it's ...... I'm afraid it's not done yet, right?"

"Kaifeng?"

Lu Yu was stunned for a moment, then screamed, stretched out his hand and patted his head and said, "Oh, I really forgot, I was so busy and tired that I forgot such an important step." ”

When the island owner heard this, he breathed a sigh of relief again.

It really scared him to death, if this was the finished product...... Then he was really embarrassed, he really didn't know what to do, first of all, this was done by Lu Yu for him, and he couldn't do without it, if he didn't want it, it would hurt Lu Yu's face, which was a very dangerous thing.

But if you want...... And wear it, this ...... I really can't take it out.

Then, I saw Lu Yu directly lift the long knife with the method of controlling things, and then threw it into the furnace.

The white flames rushed out and burned in an instant, even the furnace itself was burned to ashes at once.

And this process is only for a moment.

That is, a moment later, Lu Yu once again controlled the method of things, and burned some long knives with numb surfaces, which were directly thrown into the water tank by Lu Yu casually.

There was a thud.

The water tank also cracked, and the water was gone, and under a burst of white mist, a long knife that was even uglier than just before was revealed.

Just now, the owner of the island thought that he had seen the ugliest long knife in the world.

Now he knew he was wrong.

This one...... It's really uglier!

Then Lu Yu's voice floated over directly: "Well, it's only finished now! ”