Qin Chuan didn't know that he had been overshadowed, and after returning to the small building, he continued to study the refining weapon behind closed doors.

Three days later, someone suddenly informed him to go to the "Craftsman Supervisor" to report and refine a batch of standard magic weapons for the army.

He didn't know what the craftsman was, so he called Dugu Xinyue over.

"The Craftsman Supervisor is subordinate to the Ministry of Works, and it is a place where craftsmen work, and their main task is to produce weapons and armor and other equipment!"

"Oh, am I a craftsman? They are qualified to send the king's guests to work for them?"

As for whether they are qualified to transfer you, in principle, as long as His Majesty agrees that the Ministry of Industry can dispatch any officials below the seventh grade, you, the Captain of the Cloud Cavalry, happen to be within the range of transfers, under normal circumstances, they have to give the palace some face, but the head of the Ministry of Industry is someone from Jia Shilin's side, and it is normal for him not to give face, by the way, did Brother Qin offend anyone?"

Qin Chuan thought of Yu Youde in an instant, so he told him what had happened before.

"That's it, Yu Youde has a lot of relationship with the craftsman as a prisoner! It seems that the old guy has leaned over to Jia Shilin!" Dugu Xinyue's face was not good-looking, she asked Qin Chuan to ask Yu Youde for advice at the beginning, but now that such a thing has happened, her face is naturally unbearable.

"What happens if I don't go to the Craftsman Overseer?"

"That is, if you don't comply with the edict, you will be dismissed and investigated!"

"Oh, is it just dismissal?"

"This is not a serious crime of rebellion, and dismissal is already a very heavy punishment, but Brother Qin, you have to think clearly, although the position of a lieutenant is nothing, it is not easy to get, and there are still a thousand spirit stones to take every year, wouldn't it be a pity to lose it?"

"Hehe, Xinyue forgot what I was doing? I can refine a few magic weapons more than this spirit stone, and the other party will not hesitate to tear his face with the palace, he must be uneasy and kind, I don't want to be called around and suffer from those birds!"

"What Brother Qin said is, but the face of my palace is not something that can be swept away by anyone, so leave the rest to me, you can study the refining weapon here with peace of mind!"

Soon after, Qin Chuan's Yunqi Lieutenant was taken, but soon news came from the army that a batch of magic weapons and magic weapons from the craftsman supervisor were very inferior, and some were even defective products at all.

Seeing that the war between the DPRK and the DPRK was intensifying, the lord of the country could not stand it anymore, and beat the leaders of both sides, and then the flag died down.

Qin Chuan heard these news from Dugu Xinyue, and thought that the trouble would be solved, but he didn't know that the matter was not over.

"What, someone wants to challenge me? Fight, Lao Tzu has already itchy hands!"

Dugu Xinyue couldn't help but smile when she saw him gearing up, "Brother Qin, people are not looking for you to fight, but to learn the way of refining weapons!"

"Competition refiner, is it Yu Youde's old guy?"

"If he plans to make a move in person, it will be him who will be embarrassed regardless of victory or defeat, and it is his two disciples who challenge you, one is called Luo Hong and the other is Liu Xianlong, these two are also candidates to participate in the Instrument Refining Competition!"

"It's them, then it's not interesting, you can push it for me!"

"However, these two guys are slandering you everywhere, and they say that if you don't dare to compete, you will shrink your head! That old guy from Wang Yiyuan is not a good person, and he also said that he will act as a referee!"

"Huh... I'm embarrassed to use the inferior method of agitation, Xinyue, I'll have two refining problems, if they can solve it, they will be qualified to compete with me, otherwise, let them think as far as they want, let me go as far as they want!"

"Brother Qin, you can't despise them!"

Qin Chuan smiled slightly, "My two topics, let alone just two refiners, even if the great master of refining comes in person, it may not be able to solve them all!"

"Oh, could it be the secret inheritance of Senior Xia?" Dugu Xinyue's eyes lit up, the ability of Xia Zhiyang refining weapon back then shocked half of the Zhongzhou Continent, Qin Chuan, as his disciple, how could he not have one or two masters?

Qin Chuan smiled noncommittally again, "Xinyue, listen well, the first topic is how to use black iron, charcoal and silica to synthesize dark iron, and the second topic is how to mix the four powders of gold, silver, copper and iron together, how to completely separate them!"

"Ahh How is this possible?How can Xuantie be artificially generated, Brother Qin, are you kidding?" For the second topic, although Dugu Xinyue feels that it is very difficult, there should still be someone who can do it, but the first question is too outrageous, what is Xuantie, it is the most commonly used and basic material for refiners, but can it be synthesized?

"Hehe, I said yes, naturally I am sure!"

"No, you have to show me, if you can't do it yourself, how can you test others?" Dugu Xinyue looked incredulous, if he could really synthesize dark iron, it would be equivalent to setting off a revolution in the world of cultivating immortals, which was a hundred times more significant than the balance.

"Okay, you call Wang Yiyuan too, I'll show you, and I'll do it again when I can save it!"

Dugu Xinyue nodded, took out a transmission note and sent it out.

However, after a pillar of incense, Wang Yiyuan hurriedly came, "Haha, Xiao Qin Daoyou, could it be that you agreed to the challenge?"

"Senior Wang, Brother Qin said that only by answering the two questions he came up with can you be qualified to challenge him!"

"What kind of topic, let's hear it!"

Lonely Crescent recounted the two questions just now!

"Impossible, absolutely impossible, Xuantie is produced by heaven and earth, how can it be synthesized?" Wang Yiyuan's reaction was more intense than Dugu Xinyue, he had studied the way of refining for seven or eight hundred years, and he thought that the purification and smelting of various materials had reached the point where he could no longer improve, and materials like Xuantie belonged to the most basic materials, if they could be synthesized artificially, wouldn't it be equivalent to a creator-like existence?

Qin Chuan felt very funny when he saw the old guy blowing his beard and glaring, what is Xuantie? In fact, it is a natural ferroalloy, and the most common Xuaniron in this world is ferrosilicon alloy and tungsten ferroalloy, which he has already personally proved.

No matter how developed the refining of the immortal cultivation realm in Zhongzhou is, it has not reached the point of understanding the synthesis of chemical elements, and he, Qin, is a high-achieving student majoring in chemical engineering, and it is still promising to bully an immortal cultivator who is close to the level of ancient science and technology in his previous life!

"Senior Wang, don't jump yet, I'll show it to you now, but this thing belongs to a secret tradition, you must keep it a secret!" With the Tianping incident, Qin Chuan of course knew that the artificial synthesis of dark iron was of great significance, although this thing could not be mass-produced, and it would not have much impact on the world in a short time, but it was enough to subvert some people's cognition, so he had to give a gag order.

"Of course, we still know the severity of the matter!"

Qin Chuan took out three materials first, "Can you two know these three materials?"

Dugu Xinyue looked at it, "This is silica, this is carbon, and those are black iron filings!"

"Hey, this charcoal is not the same as ordinary charcoal?" Wang Yiyuan knew all kinds of materials well, and immediately noticed something different.

"Well, I have refined both silica and charcoal in advance, I won't go into details on how to refine them, now smelt the three materials in proportion!"

The two thought about it and expressed their understanding, the refining process should also have a saying, if you ask carefully, there is a suspicion of spying on other people's secrets.

During the smelting process, Qin Chuan used Danding, which has isolation prohibition and fire collection prohibition to ensure that the temperature is high enough, and then asked the two to help and heat it with Dan fire and infant fire respectively.

The three of them worked together, the speed doubled, and in less than an hour, the smelting was over, the Dan furnace was opened, and a piece of black metal was taken out.

"It's... Is it really Darkiron?"

"Hehe, how pure is this?"

Wang Yiyuan cooled down with cold water, then took it in his hand and looked at it carefully, and then slashed it with a flying sword, the cut surface was smooth, exuding a black metallic luster.

The fact is right in front of him, Xuantie can be synthesized, this moment subverted his worldview, what he had believed in for hundreds of years was destroyed at once, his eyes began to drift, and he even had doubts about life in his heart......

"How about seniors, are those two unqualified to compete with me for trials?"

Wang Yiyuan shook his head blankly.

"Shouldn't you slap them in the face and say they're not doing anything about themselves?"

Wang Yiyuan nodded blankly.

Lonely Crescent Moon didn't study the refining weapon, but it wouldn't be too shocking, she found that Wang Yiyuan was not in the right state, and hurriedly called, "Senior Wang, Senior Wang, are you okay..."

"Ah..." Wang Yiyuan suddenly came to his senses, he didn't expect that he would lose his mind and almost break his Dao heart.