"Lin Wei, why did you bring this king here?" Li Yuanba's heart was even more puzzled, what was the matter with these guys, so entangled?

"Your Highness, do you recognize this?" Lin Wei didn't speak, but took out a piece of black stuff from the small shed on the side and handed it to Li Yuanba.

"This is, coke?" Li Yuanba hesitated for a moment and said.

Lin Wei laughed and said, "Yes, this thing is the coke that the prince taught us to burn a few years ago!" ”

"What? Could it be that this coke is not easy to use? Li Yuanba asked suspiciously.

"No, no, no!" Liu Changqing, director of the Weaving Department, shook his head again and again, and said: "The air permeability of this coke is very good, and it can also support the stacking pressure of a large amount of iron ore, and the most important thing is that the use of coke to make iron can increase the temperature of the smelting furnace, and then improve the quality and amount of iron smelted." ”

"Wouldn't that be nice?" Li Yuanba pinched the coke in his hand and said, "With this thing, the weapons and armor of the soldiers can also be upgraded by several grades!" ”

"But right now we're in trouble!" Liu Changqing's face became bitter, "Tiezi, bring over the piece of iron that was accidentally created a few days ago, by the way, don't forget to take another piece of the best iron we made!" ”

"Yes, sir!"

There was a heavy roar from the side of the small shed, and then I saw a fierce man who was born five big and three thick, and was still wearing a thin short coat in the cold world, and walked over with a piece of silver-white iron in his left and right hands.

"Here, sir!" The fierce man handed the iron in his hand to Liu Changqing. smiled innocently at Li Yuanba.

"Silly boy, why don't you give the prince a salute?" Liu Changqing glanced at the fierce man and said.

The man woke up from a dream. Following Liu Changqing's example, he saluted Li Yuanba, and said angrily: "Zhang Shu, the grass people, have seen the prince!" ”

"Hehe, excuse me!" Li Yuanba laughed, looked at him and said, "On this cold day, you are just wearing a short coat, aren't you cold?" ”

Zhang Shu shook his head nonchalantly. said: "Lord Wang, you don't know, that small shed is like a stove. In winter and early spring, you don't need to wear so many clothes! ”

"Lord Wang, let's see what is the difference between these two pieces of iron?" Liu Changqing interjected, and as he spoke, he shoved the two pieces of iron in his hand into Li Yuanba's hand.

Li Yuanba took over the two pieces of iron in Liu Changqing's hands. The piece on the left feels like a hundred steels that have been forged over and over again. Of course, the steel here is said to be steel, but in fact it is still iron.

The so-called 100 refining into steel, in fact, is not really practicing real steel.

In ancient China, iron smelting was generally made of charcoal as fuel, and the iron ore was smelted into a sponge-like solid block in the furnace, which was taken out after the furnace cooled.

The carbon content of block iron smelting should be low. And the texture is soft, and there are many impurities in it. This is also known as wrought iron.

After that, the block of iron is used as raw material, and the carbon is heated and absorbed in the carbon fire to increase the carbon content, and then after forging, the impurities are removed and the carbon is infiltrated, and the steel is obtained after repeated hammering. And this kind of steel is called block iron-making carburizing steel.

This is the case of the hundred smelted steel that Li Yuanba collected on the left, so Li Yuanba is still used to calling this kind of steel refined iron or hundred smelted iron.

The fast iron on Li Yuanba's right hand, although it is the same size as the piece on his left hand, is obviously much heavier than the piece of hundred smelted iron, and according to the quality of the density, the iron on his right hand is much larger than the density on his left hand.

"Boom!"

"Boom!"

The iron on both hands touched each other, and the sound of the hundred smelted iron on the left hand was slightly dull, while the piece on the right hand was extremely crisp.

"What is this?" Li Yuanba's eyes suddenly lit up, and he said, "This is steel, this is steel!" ”

"The prince really has good eyesight!"

Liu Changqing's eyes flashed with approval, and he said: "Although the method of smelting iron into steel has been handed down as early as the Warring States Period, there are not many iron tools that can really be called steel!" At the beginning of the Warring States Period, Ou Yezi, a famous swordsmith in the Yue Kingdom, cast five swords for Goujian, the king of Yue: Zhanlu, Juque, Shengxie, Fish Intestine, and Chunjun; Three famous swords forged by King Chu Zhao: Longyuan, Tai'a, and Gongbu. Although these divine weapons are all doped with the Outer Heaven Divine Iron, when they are cast, they are all tempered. ”

"That's a good thing to say!" Li Yuanba said, his wrist suddenly flipped up, a faint light flashed, and a short sword that was only more than half a foot long, as thin as a cicada's wings, and the sword body was extremely irregular.

"This is ......" Liu Changqing and Ren Wei, director of the Ministry of Industry, glanced at each other, and said in unison: "Is it fish intestines?" ”

At this time, Lin Wei said: "Historical Records. It is recorded in the Biography of the Assassins that fish intestines were placed in the belly of a fish to assassinate the Wu king. Therefore, it is called the fish intestine sword, which is a brave sword! ”

Fish intestine sword! Could it be the legendary sword?

The three of them looked at Li Yuanba at the same time, and the curiosity and expectation in their eyes were overflowing.

Li Yuanba used the fish intestine sword in his hand to pull two sword flowers, and said with a smile: "Yes, it is the fish intestine!" ”

"Legend has it that the Fish Gut Sword is small enough to hide in the belly of a fish, and the blade is slender and flexible. It can be inserted along the mouth of the fish, zigzag and bend in the stomach and intestines of the fish, and when it is withdrawn, it returns to its original shape, and it is extremely tough and shining! ”

Liu Changqing's eyes turned back and forth with the fish intestine sword in Li Yuanba's hand, but his mouth kept moving up and down.

"Lord Wang...... The lower official has a reluctant request, I don't know ......"

At this time, Ren Wei suddenly saluted Li Yuanba with a twisted expression.

"Take it!"

Needless to say, Li Yuanba knew what Ren Wei's request was, and simply handed over the fish intestines in his hand before Ren Wei finished speaking.

Ren Wei took the fish intestine sword as if he was holding a holy object.

Subsequently, he and Liu Changqing got together and looked carefully up and down, left and right, front and back.

In the end, if Lin Wei hadn't forcibly snatched the sword from the hands of these two people, I am afraid that these two people would have the heart to melt the fish intestine sword.

"Lord Wang, you should take such a precious thing!" Liu Changqing returned the fish intestine sword to Li Yuanba's hand and said.

Li Yuanba retracted the fish intestines and said: "If it weren't for the fact that this short sword is quite easy to use, maybe you really have to melt it, see what metal is in this sword, and where does the manufacturing process come from?" “

"The prince laughed, even if we melt it, it won't be useless, it's just a waste of a divine weapon!" Liu Changqing shook his head with a wry smile and said, "The difficulty we are encountering now is how to practice the kind of steel that you have in your hands, the kind of real steel!" It has nothing to do with this sword. (To be continued......)