"What's the matter?"

Yang Ziyun suppressed the curiosity in her heart, let Xu Chen pull her, and walked to a wooden table, where the remaining burnt black marks on the table were clearly visible.

Xu Chen rummaged through a large pile of messy things on the table, and kept muttering: "Strange thing!

Yang Ziyun came over curiously to take a look, but saw that there were several slender strange "iron arms" on this semicircular table, which was about three zhang long and more than one zhang wide.

On one side of the table stands a wooden shelf-like shelf, on which square lattices are filled with a variety of materials. A few of them are still in their original condition, but most of them have been processed into various rough blanks.

"If you want to do a good job, you must first sharpen your tools! This is my workbench, how about it? Isn't it domineering?"

At this moment, Xu Chen is like a child showing off his toys.

"What are these?" asked Yang Ziyun as she circled around and touched those slender "iron arms".

"The power frame used for fine processing!" Xu Chen walked over, grabbed an "iron arm", pressed a red button on it, and a delicate steel drill popped out at the front end of the "iron arm", and then "zizi" turned it.

"Look!"

As he spoke, Xu Chen casually grabbed a piece of gray ore from the table and approached the edge of the steel drill, and the hard ore was drilled out of a deep hole in a moment, and the inner wall was smooth and flat.

"Not only drill bits, but also files, tweezers, power hammers, etc., ......"

As he spoke, Xu Chen explained the effects of several arms one by one to Yang Ziyun.

"More than that! This workbench took me more than half of my time!"

As he spoke, Xu Chen walked to the side of the workbench and pressed a green button on the corner of the tabletop, and then there was a dense sound of machine blinking in the wooden workbench.

The wooden table top suddenly cracked, and a whole steel plate popped out of it, and many strange things were densely welded on the steel plate.

"On this side is a lathe, proficient in cutting, cutting, planing, cutting, boring, and milling!"

"And over here!"

As he spoke, Xu Chen, who was excited, ran to the other end of the workbench again. After pressing the same button, a stove with a diameter of a foot pops out!

"Is this a furnace?" asked Yang Ziyun.

"No! induction cooker!" Xu Chen shook his head and said with a smile.

"Induction cooker?" Yang Ziyun looked dazed after hearing this.

"Uh...... It's just a reference to the working principle of the induction cooker, which is to convert alternating current into high-frequency and high-voltage electricity, and the high-speed changing high-frequency and high-voltage current flowing through the coil will produce a high-speed alternating magnetic field......

Yang Ziyun blinked twice with a pair of big eyes, looked at Xu Chen, who was talking, and was angry in her heart: "Damn! I understand every word, what the hell is it connected together?"

"Talking about people!" Yang Ziyun roared, glaring at Xu Chen angrily.

Xu Chen was stunned for a moment, smiled awkwardly, and said, "Uh...... Come and see!"

As he spoke, Xu Chen walked to the stove and lifted it vigorously! A small black round pot was immediately lifted up by Xu Chen.

"This is an inner furnace, which is used to directly smelt metals and ores!" Xu Chen pointed to the small black cauldron in his hand and said.

"Millennial Core Iron?" Yang Ziyun recognized the material of the small black cauldron and exclaimed in surprise.

The thousand-year-old earth-core iron is extremely rare, and if it is elsewhere, it is difficult to find even if there is a spirit stone!

That is, in a large refining tool like Tiangongzong, there is a lot of inventory after tens of thousands of years of accumulation.

However, the 500 catties that Goldman Sachs sent to Xu Chen at the beginning were not easy to say. Goldman Sachs has very little of its own inventory, most of which it has been stolen from his Lao Tzu.

Five hundred catties of thousand-year-old earth-core iron is enough to create dozens of hundreds of magic weapon-level fire-based flying swords!

But this little black cauldron in front of you ......

Yang Ziyun took it and turned it in her hand, at least a hundred catties!

"Hey, you don't know. Millennial geocentric iron is really easy to use! Not to mention the high boiling point, it has excellent thermal conductivity! It is really an excellent material for making furnaces!"

"Make a stove ......" Looking at Xu Chen's smiling face, the corners of Yang Ziyun's mouth twitched weakly.

"If it weren't for the fact that the materials in this place can't withstand the oxidation reaction, I'm going to use them directly as the main furnace......!

"Do you know how valuable this thing is?" asked Yang Ziyun, her eyes widened.

Xu Chen looked at her strangely, and said in a daze: "Did you spend money on this thing?"

Hearing this, Yang Ziyun was also stunned, thought about it, and said, "I fought!"

"Oh!" Xu Chen nodded and said very seriously: "Then I'll help you call back when you go back!"

"Alas, it's far away! These are not the point!" Xu Chen waved his hand, motioned for Yang Ziyun to come forward, and said, "Come and see!"

"This is an outer furnace, and it is completely polished from the rocks deep in the center of the earth!

"Stones?" asked Yang Ziyun.

"That's right!" Xu Chen nodded and said, "You don't know, these complete stones in the depths of magma are much better heat-resistant than metal!

"It's the stove again...... Yang Ziyun hung her head and waved her hand, "Go on!"

"This stone outer furnace is not the key!" Xu Chen smiled mysteriously, and then triumphantly pointed to the metal rods inlaid on the inner wall of the outer furnace and said, "These things are the key to my refining furnace!"

Yang Ziyun lowered her head, took a closer look at the metal rods inlaid on the inner wall, pointed to the metal coils on the top and asked, "What is this?"

"Hey, hey!" Xu Chen laughed, smiling as much as he could!

"Say it quickly!" Yang Ziyun couldn't wait any longer, so she directly interrupted rudely and smiled a lot...... Xu Chen of tea kung fu.

Xu Chen raised his head and said proudly: "This is the product of spanning tens of millions of years and integrating two advanced civilizations!"

"Speak human words!" Yang Ziyun was full of black lines on her face again.

"This sentence is really human!" Xu Chen said very strictly: "Every technological change of human beings starts from energy and power without exception! The birth of this furnace marks the high degree of integration of the two advanced civilizations before and after, and also provides me with the most suitable source of power!"

Seeing Xu Chen's solemn face, Yang Ziyun listened quietly, and she could clearly feel the surging waves hidden under Xu Chen's calm surface at this moment.

"These are all induction heating rods, which I made by imitating the structure of the induction cooker! But it's not just the induction cooker, you look at the outer wall of this stove!" Xu Chen then pointed to the dense lines on the outer wall and said to Yang Ziyun.

"These ...... Are these all runes?" Yang Ziyun's eyes lit up and she was surprised.

"Not bad!" Xu Chen nodded lightly.

"You've learned so many runes?"

It's been a month of practice, and Yang Ziyun has memorized a lot of runes in her spare time.

For the monk who has never forgotten, it is not difficult to remember the shape of the rune, the difficulty is to depict it, the complex rune must ensure the balance and coherence of the aura input when depicting, but if there is the slightest difference, the whole rune will be wasted.

Without enough experience, it is impossible to master a rune!

But the outer wall of the small stone furnace in front of Xu Chen was densely carved with countless runes.

And Yang Ziyun could see clearly that none of the runes on it were known to her!

Xu Chen shook his head lightly and said with a smile: "No! There is only one kind of rune engraved on it, the only 'flame' rune that can increase the temperature!"

"Impossible! I remember the flame rune, it's not like this!" Yang Ziyun shook her head resolutely.

Xu Chen smiled indifferently, and the smug look in the corners of his eyes was clear even from a distance.

"Could it be...... No, it can't be!" Yang Ziyun saw his appearance, and a thought flashed through his mind, but it was instantly dismissed.

"How could it be!" Xu Chen's head was raised slightly, with a stinky face.

"You...... What are you talking about?" Yang Ziyun was dumbfounded and exclaimed, "You...... Did you really change the structure of the runes?"

"That's right!" Xu Chen said as a matter of course: "Speaking of which, there is only one kind of rune on it, 'Flame'! It's just that I have added a lot of other rune components on the basis of 'Flame' that can maintain the power and not dissipate!

"Runic components, what's it?" Yang Ziyun was puzzled.

"It's the basic part that makes up the basic runes!" Xu Chen explained, and then a trace of embarrassment appeared on his face, and said: "Actually, I don't think I'm creating a rune, but I just subdivided the basic rune again, found out the key parts that play a major role, and then formed hundreds of rune components!"

"Then just rearrange and combine these hundreds of rune components to get the various runes you want!"

Xu Chen said it lightly, but Yang Ziyun was dumbfounded when she heard it!

For tens of millions of years, 1,256 basic runes have been a fixed pattern that is impossible to subdivide!

This has long been the consensus of all the monks in the cultivation realm!

It's not that there are no conceited geniuses trying to change the format of the basic runes, but no matter how hard these guys try, once they change the shape of the basic runes, the aura gathered in them will burst out in an instant, and no matter how high the quality of the rune carriers, they will be discarded in an instant and can no longer be used!

"This ...... This...... How is this possible? How did you do it?" Yang Ziyun lost her mind for a while before she recovered, grabbed Xu Chen's arm, and hurriedly asked.

"Hehe!" Xu Chen smiled proudly, and then said: "Actually, the biggest reason why they can't change it is that when they carve the runes, they are depicting and infusing the aura at the same time!"

"But, I'm not! I'm going to carve the runes first, and then I'm going to inject the aura!"

"How is this possible?" Yang Ziyun couldn't remember the first sentence she asked today......

"Hehe, because I have a generator!"