The forging method of the Lu blacksmith was a little different from what Du Sheng had known before.

He beat it a hundred times, sometimes fast, sometimes slowly, and then threw the iron into the furnace and burned it.

When the iron was red again, he took it out again and continued to beat it. It took fifteen repetitions before the thrashing finally stopped.

Through careful observation, Du Sheng found that he would hammer the iron with different strength and speed each time, and when the fifteenth beating was over, a piece of pig iron, which was originally the size of a noodle bowl, was now reduced by three or four turns, and became a wrought iron covered with lines.

"Whew~"

"It's old, it's not as old as it used to be. It's only been a few times that my old bone is a little unbearable. Now this piece of pig iron has become fifteen smelted wrought iron. If we continue any longer, we will have to wait for the old man to rest for a while. ”

The blacksmith Lu, who had stopped swinging the hammer, exhaled a heavy breath and wiped the sweat from his face panting.

An old face turned red from strenuous exercise, and the whole body was steaming hot.

Because of his old age, in recent years, Lu Blacksmith has rarely beaten pig iron himself, and these things are done by a few of his apprentices.

It is only when it comes to the critical step of casting that he sometimes takes matters into his own hands.

"Lu Lao's casting skills are really exquisite! I'm afraid we won't be able to catch up with this skill of beating pig iron in this life. ”

"Yes, today I am fortunate to see Lu Lao personally make a move, and this trip is earned."

"Hey! If I can reach half the level of Lu Lao in my life, I will be content! ”

After seeing the exquisite skills of the blacksmith Lu, these old blacksmiths gave a thumbs up from the bottom of their hearts!

There is a huge gap in the price of blades in this world, and ordinary swords are only three or four refining, and those that reach five refining are considered good. The price of this level is usually between three and five taels of silver.

The price of a six-to-ten-tempered blade is much higher, generally between ten and thirty taels.

Blades that exceed ten refinements are truly ranked.

Ten to nineteen refining are collectively referred to as a product, and the price is more than one hundred taels of silver. With each product that is raised, the price will also increase exponentially.

A sword that has reached more than 70 refinements is what the world calls a divine weapon.

Blowing hair and breaking hair, and the blade does not get bloody, this is the norm.

The so-called hundred refinements are just a metaphor. It generally refers to a divine weapon that has reached more than 70 refinements.

Even the sword of the Son of Heaven forged by Grandpa Lu Blacksmith for the last deceased monarch of the Wu Dynasty had only just reached the point of ninety refinements.

In order to forge the sword of the Son of Heaven, Lu's blacksmith's grandfather spent three full years and painstakingly forged it.

According to the records of the Lu family's secret codex, there are only three real Hundred Refining Divine Weapons in the world! And these three divine weapons were forged by those three divine craftsmen.

If you want to cast a divine soldier, you must become a divine craftsman!

Although Du Sheng hadn't seen how powerful the Hundred Refining Divine Weapons were, he knew that the refined steel he would refine next would definitely be enough to make guns.

"Old Lu, if you look carefully, the refining of refined iron is about to be completed!"

Du Sheng's words were like a needle of chicken blood, and immediately made the eyes of everyone around the iron furnace widen fixedly.

"Throw three pieces of black stone into the furnace, and the bellows will speed up!"

Du Sheng glanced at the fire in the furnace and ordered.

"No!"

The two little guys waiting on the side agreed at the same time, and after one picked up three fist-sized black stones and threw them into the back of the furnace, the person in charge of pulling the bellows pulled it quickly.

"Huhuhuhu~"

As the bellows whistled, everyone was amazed that the black stone burst into flames at a speed visible to the naked eye.

"Keep throwing black stones!"

Looking at the changes in the fire, Du Sheng continued to command.

When the iron furnace was covered with a layer of burnt red black stone, he immediately had the piece of iron that the blacksmith Lu had just beaten thrown into the furnace.

"Hurry up the bellows, go and two people help pull them together!"

"Gawu Stone!"

"Bellows speed steady!"

Du Sheng quickly gave an order while observing the changes in the iron in the furnace.

The blacksmiths gathered around the furnace were shocked to see that the piece of iron in the furnace was burning more and more red, and it was about to merge with the raging flames.

"Bellows accelerate! Hasten! Accelerate again! ”

"Sting~"

Du Sheng stared at the piece of iron that was about to burn without blinking, and frantically urged the little guys whose clothes were almost wet with sweat.

When the sound of the first drop of molten iron dripping sounded, Du Sheng clenched his fists excitedly.

"It's finally done!"

"Oh my God! It turned into molten iron! ”

"Molten iron! Pig iron can really melt water! It turns out that the legend is true! ”

"Blessed by the Divine Craftsman Patriarch, I have a hope for the rise of the Casting Thread!"

Lose your marbles!

These blacksmiths were all crazy the moment they saw the pieces of iron turn into molten iron.

Blacksmith Lu was even more excited and cried like a child.

There were also people holding each other and jumping and jumping, and they were all about to ascend to heaven with excitement.

"Ahem, ahem!! Masters, you don't just watch the molten iron flow in the furnace, do you? ”

Du Sheng was really afraid that these old guys would kick their legs excitedly and burp their farts. Quickly coughed a few times, pointed to the iron that was melting the water, and asked loudly.

"Yes, yes, yes, clip it up and cast it quickly!"

The man closest to the stove nodded quickly, and turned to pick up the unburned piece of iron with a clamp.

"That's right! Ignorant fool, even if you beat it for a lifetime, it is impossible to remove all the impurities of pig iron! It's not just you who can't, it's not all of us! But it can! ”

Blacksmith Lu pointed to the raging flames, and kicked the guy who was going to take the clip with a in an excited kick, preventing anyone from moving the piece of iron that was melting the water.

After watching the iron completely turn into molten iron, Blacksmith Lu retracted his gaze with satisfaction and ordered several of his apprentices to immediately make a special iron furnace and come out.

This furnace differs from other iron-striking stoves in that it has a device added to it that can accommodate the outflow of molten iron.

Pig iron melts at terrifying high temperatures, volatilizes off most of the impurities, and then slowly cools to form steel.

After the new furnace was built, the Lu blacksmiths didn't need Du Sheng's greeting at all, and started steelmaking as soon as possible.

Du Sheng saw that they were so active, so he let them do it, let people carry a chair out, and sat leisurely and watched them toss.

"Go and call Li Mu."

When the first piece of steel was halfway through, Du Sheng suddenly remembered something, raised his hand and beckoned a Qinglongwei to come over and explain.

After a while, Li Mu, who was dressed in a flying fish suit, walked in quickly.

"You personally take someone to bring the families of those blacksmith masters to the Hou Mansion, so that Fu Bo can find a place to settle properly."

Du Sheng glanced at the blacksmith Lu and the others, and whispered in Li Mu's ear.

"No!"

The corner of Li Mu's eyes jumped, and he quickly turned around and left.

"Lu Lao, don't blame me, whether it is steelmaking or casting muskets, it is too important. Once the slightest rumor leaks out, the world will be in chaos! ”

Du Sheng exhaled softly and sighed secretly in his heart.

From the moment he told these people the design of the musket and the method of steelmaking without the slightest concealment, it was doomed that they would never be able to get out of the Hou Mansion in their lives.

Of course, Du Sheng is not a demon who kills people without blinking. He also expects these people to make guns for him, how can he be willing to kill them?

As long as Lu Blacksmith and others do things well, they don't have two hearts. Du Sheng can ensure that they will be prosperous and wealthy for a lifetime, and even future generations will continue to be noble.

In the first place, he decided to create the Blue Dragon Guard, in large part because of the consideration of muskets and steelmaking.

If one person divulges a secret, then one person will be killed!

If the family has two hearts, then the nine clans will be punished!

Although Du Sheng will not kill innocents indiscriminately, he is by no means a soft-hearted person.

Otherwise, in his previous life, he would never have been able to cheat among the wealthy nobles of various countries for more than ten years, and he could still enjoy life in style.