The Iron Old Man's skills were divine in Long Li's eyes, and even if he became a Weapon Saint, he couldn't help but marvel when he recalled this past.

The Iron Old Man used his actions to unveil another mystery of this world for Long Li.

also completely detonated Long Li's thoughts.

Countless thoughts burst into Long Li's mind in an instant, and these thoughts lingered in his mind like an elf.

Slowly, Long Li fell into it.

The old man looked at Long Li holding the sword in a daze, thinking that he was shocked by his own skills, and he couldn't help but feel very proud in his heart, but after a while, he found that Long Li actually closed his eyes and pondered.

He was shocked in his heart, this kid actually had an epiphany!

In the dantian, Lao Jin's longan was also shattered.

It is said that the human race is the darling of heaven, how can this dragon Li be like his own son?

This epiphany came too easily.

Seeing that Long Li fell into an epiphany, the old man quietly opened all the magic circles, and he stood at the door to act as a security guard.

Long Li was already deeply immersed in it at this time, and all kinds of ideas kept coming up like a blowout of inspiration, and the places that he couldn't understand in the past can now easily find solutions.

Even, he can draw inferences.

Long Li was immersed in it, and his speed of thinking became faster and faster.

The old man's techniques were broken down by him step by step, and various techniques and precautions were listed aside, just like a proof question, Long Li made different arguments at the same time.

Among them, Long Li unconsciously integrated Xu Xue's theory, and this epiphany was actually more like a blend of two civilizations.

And Long Li is fortunate to be this carrier!

If it was said that in the past, he was not afraid to learn mathematics, physics and chemistry and go all over the wilderness, then now in the hands of Long Li, he will step into another realm.

Learn mathematics, physics and chemistry well, and don't be surprised to refine artifacts!

Yes, Long Li's brain has already begun to envision the artifact manufacturing process, and even the parameter indicators. There are a lot of ideas, and it naturally takes more time to digest them one by one.

Long Li fell into an epiphany, and he didn't know everything.

This is a bitter pain for the old man of iron guarding outside. If the first three days didn't matter, the old man was already sour from the fourth day, which was a double torture of mind and body.

As for Lao Jin, he only lasted for a week.

One person and one dragon are all paying close attention to Long Li's movements, and they are constantly guessing Long Li's awakening time.

A week?

Ten days?

Half-moon?

After slapping their faces several times in a row, the two gave up and simply began to calculate how long Long Li could last.

That's a whole month!

A month later, Long Li's eyelids trembled a few times and finally opened his eyes. His lips were chapped, and he felt like his throat was about to tear when he wanted to speak.

"Master, I'm ......"

The old man was not much better than Long Li, "You have fallen into an epiphany, it's been a month. ”

Long Li looked at the old man with sunken eyes and felt a pain in his heart, "Master, have you been here this month?" ”

The old man said angrily: "I'm here to prevent you from having an accident!" ”

Long Li grinned with difficulty, "Thank you Master for protecting the Dharma, this kindness disciple will remember in my heart!" ”

The old man moved his stiff muscles and bones, and said with a cold face: "What do you remember, why don't you hurry up and cook, you want to starve my old man?" ”

Long Li put on a well-behaved and sensible smile, "Master, you go and rest first, and the disciple will go cook!" ”

The old man turned around and left when he saw that Long Li was fine, "If you can't do it, go outside and buy some, don't waste time and energy, old man, I have to sleep after eating." ”

Long Li was moved, this old man is a dead duck with a hard mouth, and he is afraid that people will be tired and say how good it is.

"Slow down, I'll go to the kitchen first."

After the old man left, Long Li moved his muscles and began to fight in the kitchen. As for this month's harvest, he didn't pay attention to it for the time being, and he was not in a hurry at this time after a month had passed.

The kitchen was empty for a month, and the stove was dusty, and it took a quarter of an hour to clean it up.

After cleaning the kitchen, Longli immediately started construction.

The sound of chopping vegetables sounded again, and the chimney, which had been silent for a long time, finally let out a breath of fresh air.

The old man was very satisfied with the sound of chopping vegetables from the kitchen, and this was the taste of life. Old Man Tie felt that he should have accepted an apprentice earlier, and with such a genius disciple who could cook, he would really wake up laughing when he dreamed.

Picking up a cup of tea, the old man found that the water was cold, he frowned, a small flame turned in it, and a cup of steaming tea was done.

After taking a sip of hot tea, the old man felt that he had come back to life.

Thinking of Long Li's time of epiphany, the old man Tie felt a wave of envy, jealousy and hatred in his heart. If he had this opportunity, he would have been at the seventh order long ago, and he would even be able to get a glimpse of the mysteries of the eighth order.

What a pity!

Although he didn't know what Long Li had gained this month, he was sure that Long Li's harvest this time would be beyond his imagination.

After two incense sticks, Long Li came to the restaurant with a large tray.

"Master, it's time to eat!"

The old man's nose moved slightly, and when he opened his eyes, his figure flashed to the table.

"Apprentice, what's so fragrant."

Long Li lifted the lid of the pot, and under the steaming steam were crystal clear rice grains, mixed with vegetables and meat, and the aroma alone made people have an appetite.

"Master, this is the porridge I made. You haven't eaten for a month, and your stomach can't stand anything that is too stimulating, so I specially prepared porridge for you. ”

"It's a couple of side dishes, all of which are easy to digest."

Looking at a few green side dishes, the old man Tie was very satisfied, and he could give 7 points just by looking at the color.

"If you have a heart, let's go!"

The two of them who hadn't eaten for a month were like a whirlwind when they started, and they didn't have the slightest awareness of chewing and swallowing slowly, for two hungry people, maybe this was the best way to eat.

A large pot of porridge, plus 3 side dishes, the two of them ate cleanly.

Long Li touched his stomach contentedly, and said in his heart that only when he had goods in his stomach could he not panic.

The old man didn't know where to conjure up a small teapot, and took a sip of tea, "Apprentice, how is the harvest of this retreat?" ”

At the mention of the harvest, Long Li's eyes were radiant.

"Probably 4th order hope!"

The old man almost choked to death, how old was he when he was in the fourth order, let alone his early 20s, this kid ......

It's really more popular than people.

"Yes, I had a fight with your master!"

"But don't worry, cultivate your body first and then experiment, and when you fully grasp the things at this stage, I will take you to see the world."

After Long Li thanked the old man Tie, he hurried away.

In the morning of the next day and a half, Long Li turned over and got up to prepare breakfast, although he was allowed to sleep lazily today, he couldn't sleep after a month of not moving.

After exercising, breakfast, and two things were done, Long Li went straight to the forging room. In this epiphany, he has accumulated a lot of ideas that need to be verified, and now he wants to strike while the iron is hot.

First of all, the forging of 100 smelted iron.

Hundred iron refining does not mean that it must be refined, but the quality is only to meet the standard of use, which is very easy for most refiners to do.

Just like Long Li, he will be when he is an apprentice.

Long Li began to build a miniature steelmaking furnace according to the method of making steels from an oxygen bottom blowing converter, and after some transformation, he immediately began to experiment.

The first furnace, the steel quality was slightly poor, and it failed.

The second furnace still failed.

Third furnace ......

After many failures in a row, Long Li finally refined a qualified iron ingot. After some testing, Long Li announced with satisfaction,

He can already mass-produce 100 iron!

After refining 8 furnaces in a row, Long Li stopped the production of 100 iron smelting. All the things he wants to verify have been verified, and at this time, his finished product rate has reached more than 80%.

You know, this is a small-scale refining, which is countless times faster than tapping piece by piece.

After the hundred iron smelting was completed, there was not much iron ore in the warehouse, and Long Li was too lazy to go out to order ore, so he simply began to study the refining method of thousands of forged and ten thousand wrought iron.

Compared with the hundred forging, the thousand forging is a further reduction of impurities and a further improvement in performance, which is difficult to do.

Long Li continued to experiment with the steelmaking furnace, and this time he used Yuan Li.

The use of Yuan Force assistance is the result of Long Li's careful consideration.

First of all, the use of Yuan Li will not add unnecessary impurities, which can maintain the purity of molten iron.

Secondly, the use of Yuan Li can allow the steel to adapt to Yuan Force in advance, creating a foundation for advanced forging in the later stage.

The last point is that after using Yuan Li, it is convenient for him to control the quality of the steel more accurately.

With the foundation of 100 forging, the test of Longli thousand forging steel was successful after only 3 attempts, and the quality reached the top grade.

Although he can't make it to the ultimate level now, it's already terrifying at this scale.

After refining 5 furnaces in a row, Long Li stopped.

He has been able to achieve 100% of the success rate of 100 forging, of course, this is the reason for the bottom of 100 wrought iron, but he has been able to reach more than 60% of the top grade, which can be described as rapid progress.

Next is Wan Forging.

Ten thousand forging is different from thousand forging, and its main feature is crystallization.

Through microscopic adjustments, the inside of the iron ingots can be combined in an orderly manner, so as to improve the quality of steel, which is the real secret of Wanforging.

Of course, there is a solution to this.

Still trying in small batches, Long Li tried several different crystal structures in a row, and finally succeeded in all of them.

Looking at the iron ingots of different qualities in front of him, Long Li fell into deep thought. The quality of 10,000 wrought iron ingots is not determined by crystallization, but by vitality.

Only those who can tolerate a part of the vitality and have a very balanced crystal distribution are called the best, and most of the products made by Longli are medium and upper-grade, and the difference is in the inclusion of vitality.

In this regard, Long Li also has several ideas, and it is not impossible to improve.

It can be said that Longli's method is subversive.

Long Li touched his chin and meditated, obviously dissatisfied with this result. His goal is 100%, otherwise how can it be easy to take it out and pretend.

Ahem, it's a show~

After pondering for a while, Long Li took out a notebook and began to write and draw on the side, looking at his appearance, it seemed that he was really calculating something.

Three hours later, the papyrus that Long Li had calculated was piled up three feet high on the side, and in front of them were three thin pamphlets.

This is the result of his nearly two months - the Long's iron-making method!

The three books on the table correspond to the three orders of Hundred Forging, Thousand Forging, and Ten Thousand Forging, corresponding to 1, 2, and 3 volumes respectively, and they are all recompiled after being confirmed.

Looking at the three books in front of him with satisfaction, Long Li could now proudly tell everyone that he was the one who led the Barbarian Refinery.

"Lao Jin, with these three books, we will be able to pass on the fame through the ages!"

The old golden dragon's eyes were full of contempt, "Just these three broken books? ”

Long Li smiled and said: "Lao Jin, in this world, not only force is power, but knowledge is also power, and it is the power that can change the world. ”

Lao Jin disdainfully, "What can knowledge help you?" ”

Long Li said with a smile: "These three books of mine can allow ordinary people to refine ten thousand wrought iron ingots, and the success rate is extremely high. Imagine what would happen if the Terran weapons were all above the third order? ”

The old golden dragon's face was full of solemnity, "From now on, he will dominate the dragon martial arts!" ”

Long Li smiled awkwardly, "It's not that terrifying, at least the strength has increased by two or three percent, and now you still think that knowledge is not powerful?" ”

Lao Jin was silent.