In the Chinese world, Xuantie is generally an extraterrestrial meteorite.

To be precise, it is the wreckage of an extraterrestrial meteorite that burned and fell to Earth.

Therefore, dark iron, also known as meteoric iron, can generally only be cold forged according to its shape and size, but not hot forging. If it is hot-forged, it is like being cast together with other metals, and it is difficult to distinguish it as dark iron again after forming.

The Xuantie of the Tianyuan Continent is different from the Extraterrestrial Meteorite of Huaxia.

First of all, it is not dark black or dark red, but silvery-white, and although it is harder and heavier than ordinary steel like meteoric iron, it can be hot-forged.

Secondly, it does not only come from outside the sky, but can also be formed naturally. Like Zhang Teng, this piece of dark iron comes from the depths of the iron mine near Chen Village.

Finally, the dark iron here is also divided into cold dark iron and fire dark iron, the former is cast into weapons with cold attributes, and the latter has fire attributes, which is quite a rare metal material.

I heard that the better grade of dark iron is called dark iron essence, and then it is the mother of dark iron. However, these two are extremely rare, especially the Xuantie Mother, which is simply rare and has no price.

The piece in Zhang Teng's hand is cold iron, also referred to as cold iron.

In order to process and forge cold iron, not only does it require a higher temperature than fire iron, but even the manufacturing process conditions are extremely harsh. That is, the craftsman must ensure that the structural properties of the cold iron remain unchanged at high temperatures, and at the same time, the cold iron must be repeatedly forged to squeeze out the impurities in it.

However, ultra-high temperature will inevitably destroy the structural properties of the cold iron, and if the temperature is too low, it will not be possible to forge the cold iron. What's more, in terms of hardness, at room temperature, the cold iron of the Tianyuan Continent is many times higher than that of the Chinese world, and cold forging is almost impossible!

However, it is indeed a little difficult to forge weapons with cold black iron, but it is not impossible in the Tianyuan Continent.

It's very simple, you only need to use the water system aura, pour the whole piece of cold iron, supplemented by high-temperature firing and forging!

Because under the infusion of the water system aura, the structural attributes of the cold dark iron will be protected by the water aura. Even if the cold iron encounters a high temperature that reaches its melting point, its original structural properties will not be destroyed by the high temperature.

Not only that, but if you pay attention to the cold iron with water aura, the melting point of the cold iron will be much lower, making it easier for craftsmen to process and forge and make the weapons they need!

It stands to reason that Han Xuan Iron is an excellent weapon forging material, and the reserves of Tianyuan Han Xuan Iron are very large, and the weapons made of Han Xuan Iron should be very common, but this is not the case.

In the Tianyuan Continent, although Han Xuan Iron is a good forging material, craftsmen rarely use Han Xuan Iron to build weapons.

You must know that most of the craftsmen are martial artists who mainly use fire attribute exercises. Because of the restraint of fire and water, the two extremes of aura are easy to clash in the body of the warrior, causing him to go mad. Therefore, an ordinary craftsman, after cultivating the fire attribute exercises, if he has good talent, he may be able to practice wood-based exercises, earth-based exercises, and gold-based exercises at the same time, but he basically can't cultivate water-attribute exercises.

Of course, it doesn't mean that craftsmen don't know how to practice water exercises. Some martial arts practitioners who practice water system exercises occasionally act as amateur craftsmen, but there are too few such people.

In addition, in the eyes of the craftsmen, although the attributes of Han Xuantie are good, it is not the best choice for crafting weapons. The Tianyuan Continent is rich in products, and materials that can replace cold black iron abound. If they wanted to forge a weapon similar to the Chill Iron attribute, they would definitely not give priority to Chill Iron.

Because the process of forging cold black iron is too complicated, if they want to use cold black iron to forge weapons, they also need the assistance of water type aura props or water type martial artists, so that the cost of manpower and material resources is extremely large, and it can be said that the gains outweigh the losses.

Of course, Zhang Teng's use of cold iron to build weapons is actually a helpless thing.

First of all, he couldn't find better materials in the poor Suining, and secondly, he didn't know how to practice fire, and he didn't have the forging knowledge above a two-star craftsman. Even if he wanted to build other weapons, he couldn't. Now that I have just practiced the water system exercises, I have sufficient reserves of water aura in my body. It couldn't be more suitable for forging cold iron.

Because Zhang Teng had done a lot of preparation before, and now he has already built his own weapons, so the forging work is progressing very smoothly.

After two years of study, Zhang Teng has accumulated a lot of forging knowledge and experience, and his forging skills have long been perfected.

At this time, he can be said to have reached the peak level of a one-star craftsman, but he lacks a representative work, so he has not yet been certified by the Instrument Alliance.

"When!when!when......"

At this time, the sound of striking iron kept coming from the humble forging room, crisp and loud, deafening.

In the blazing furnace fire, the blazing white cold iron is constantly deformed, stacked, folded and forged, and the impurities are squeezed out little by little......

With the passage of time, that piece of cold dark iron finally became narrow and slender, and gradually took on a trace of silk knife-like appearance.

Seeing this, Zhang Teng's tired eyes were filled with joy.

You must know that constantly pouring water aura into the cold dark iron like this is tantamount to constantly competing with others for skill, and the amount of aura consumed in a day is extremely huge. If it weren't for Zhang Teng's previous killing of the demon tiger, absorbing that piece of spirit crystal, and reaching the late stage of the Spirit Gathering Realm, I'm afraid that he would not be able to support it for a long time.

Now the total spiritual energy storage in his body has doubled compared to before, and the water system spiritual energy is twice as much, which can barely maintain the whole day's spiritual energy supply to Han Xuantie.

However, this cold dark iron only has the appearance of a silk knife, and there is still a long way to go before it becomes a real knife.

Zhang Teng did not rest, he continued to work hard day and night......

In the Chinese world, it takes at least a few months or a year, or even longer, to make a good knife by hand, because of the complexity of the process.

However, in the Tianyuan Continent, it is different to make a good knife, as long as the raw materials are sufficient, the time taken is extremely short.

Because compared with the craftsmen of the Tianyuan Continent and the ancient craftsmen of China, there is a huge difference between the two in terms of physical fitness and forging technology.

Of course, if the sword is made with modern Chinese technology, then it is another story. The mass production speed of the machinery industry is not something that ordinary manual manufacturing can catch up with, even if it is the Tianyuan Continent.

On this day, the finished weapon created by Han Xuantie was finally presented to the world.

This is a Chinese Tang knife. To be precise, it is Zhang Teng's modern version of the Tang horizontal knife that he borrowed from the ancient Chinese Tang horizontal knife and improved it.

Tang Hengdao's slashing ability is average, but the armor-piercing effect is better than that of ordinary knives. And this armor-piercing effect is the main reason why Zhang Teng chose to forge Tang Hengdao.

Before he fought with the Demon Tiger, the Demon Tiger's strong defensive ability gave Zhang Teng a big headache. If he hadn't broken his armor with a steel spear, he was afraid that the result would be reversed, and his people would not be standing here properly at this moment.

Of course, this knife cannot be called a "Tang horizontal knife", it has no ring behind the handle, and can only be generally classified as the "Tang knife" of modern China.

This Tang knife, the blade is straight, small, long handle, weighs about 12 catties 824 centimeters, the total length is about 3 feet 4 inches, the handle is about 1 foot long, the blade is 2 feet long, the blade width is more than one inch, and the blade thickness is less than three points.

The blade of its blade exuded bursts of frost and cold air, circulating with a brilliance like frost flowers, and the surface was covered with frost-white knife lines. The knife pattern is like the ice peak of the snow-capped mountain, which is steep and steep, majestic and magnificent, and has a unique sense of beauty. And when the three of the frost and cold air, the frost flower brilliance, and the frost white knife pattern appeared on a knife at the same time, it immediately made the level of this knife skyrocket instantly, making it from an ordinary knife into a very ornamental work of art.

Yes, this Tang knife, it is not only a weapon, but also a three-dimensional handicraft naturally carved with thousands of miles of snow!

In particular, the real frost and cold air, the finishing touch, gives this three-dimensional handicraft a fantasy charm!

If this knife is in the Chinese world, it will undoubtedly be directly promoted to a treasure, even if the practicality of this knife is worthless, its cultural and artistic value is immeasurable!

However, Zhang Teng is a pragmatic person, and he pursues the practicality of the knife.

As a straight man, he doesn't go after anything fancy in his hooli. Therefore, for the knife in front of him, he will not give up on testing the practical performance of the knife because of its beautiful appearance. Even if he succeeded in creating such a pleasing and beautiful knife, Zhang Teng's expression still didn't change much.

In his eyes, a knife is a knife, and it is just a knife.

The value of the knife lies in its practicality, in cutting off all obstacles in front of its owner. In short, a knife that can chop and cut things is a knife for him, and it is a good knife!

At this time, Zhang Teng held the knife in his hand and walked out of the house to try to swing it a few times.

Although the total weight of this knife is much heavier than that of ordinary steel knives, because the center of gravity is just right, it can make people feel that it is surprisingly good when wielded.

Well, this knife feels OK.

After Zhang Teng tried the feel, he nodded secretly.

Then, he came to the bamboo forest again, and waved his Tang knife to cut down a few bamboos. I felt that the blade slashed diagonally across the bamboo, as if it was scratching in the air, without the slightest sense of obstruction.

Whoa!

There was a dense chaotic sound, and several bamboos slowly fell, only to see that the incision of the bamboo was extremely smooth, and a layer of frost slowly grew, covering the incision after a while.

"Shhh

Zhang Teng stretched out his finger and touched it, and couldn't help but take a cool breath. He only felt a cold air seeping into his fingertips, cold to the bone, and his whole finger was slightly stiff and numb. At this point, Zhang Teng's face finally had a faint smile.

This knife is cold, and there is no blood in killing!

Just now, Zhang Teng chopped the bamboo, using ordinary energy, and he had not yet infused the aura. So what when he infused this knife with aura, what should he do if it used its power?

Zhang Teng did whatever he wanted, he poured the aura into the blade of the knife, only to see that the blade of the knife was suddenly cold, the blade was cold, the killing machine loomed, and the surrounding temperature dropped sharply.

The originally warm and pleasant early spring of January has suddenly turned into a bitter October winter!

"Brush!"

Zhang Teng stabbed backhand, the knife light swept like lightning, and several bamboos in front of him broke at the waist, and the frost at the fracture spread instantly, freezing the entire bamboo into a popsicle.

A breeze blew, and several frost-wrapped bamboos fell in response, making a rustling sound like a shower in the bamboo forest.

At this time, Zhang Teng's face was full of joy, the corners of his mouth outlined a smile, and he held the knife in the bamboo forest and practiced the knife technique of "Tianlun Blade".

"Brush, brush!"

The sharp blade broke through the air, the sword wind was sluggish, the frost flowers bloomed, and I saw a cloud of cold light moving rapidly in the bamboo forest. I saw that it was sometimes like silver water pouring on the ground, sometimes like a meteor catching the moon, sometimes like a firework bursting into flames, shooting out the knife qi in the sky, and there were more knife marks on the bamboos, all dyed with frost white......

When Zhang Teng put away the knife, most of the bamboo in the entire bamboo forest had fallen, and when he looked around, he saw a white patch, like a snowy area.

However, the culprit who destroyed the bamboo forest was excited at the moment, and it seemed that he was still unsatisfied.

With a whoosh, Zhang Teng jumped up, swept into the room with a knife, and he quickly came to the stainless steel spear, and used his aura to slash diagonally towards the barrel of the stainless steel spear.

The blade of the knife sliced like tofu silently slashed through the stainless steel gun with a diameter of more than an inch thick.

"Boom!"

The half-severed gun fell heavily to the ground, the incision as smooth as a mirror, and a layer of silvery frost slowly wrapped around it. It's a pity that this silent hero, who once killed the demon tiger and made great contributions, now ended up with a knife in two and a different head.

Unfortunately, the murderer was not heartbroken at all.

On the contrary, he was satisfied, and while gently stroking the blade with his hand, feeling the coldness coming from his fingertips, he lowered his head and pondered silently. After a while, Zhang Teng smiled and said to the knife in his hand: "From now on, you will be called Shuangying." ”

Soon, Zhang Teng took a piece of ebony that had been prepared for a long time, made it into a scabbard, and included Shuangying in it.

At this point, the busy ten days finally came to an end......