"No! What I want to inquire about is whether I, Yang and Jiang, are there going to be a war? Xu Mo looked at Gao Yan and asked his doubts.

"Yes, Yang Guo is about to start a war with Jiang Guo, and the Sword Transformation Pavilion also wants to do his part for the country!" Gao gradually replied without hesitation.

"Our teacher is the master of the Sword Transformation Pavilion? I don't know what the name of the pavilion owner is, but I heard that the owner of our Sword Pavilion not only taught Prince Yang Guo, but also a disciple of a sword immortal? Xu Mo looked at Gao Yan and asked his doubts.

"Well, the rumors are indeed not exaggerated, the teacher's name is on Yang Xiaye, he is a descendant of the Zhou Dynasty royal family surnamed Ji, and he is also a side branch of the Yang royal family (the Yang royal family was originally surnamed Ji, and later changed to the surname Yang), when he was young, he met the sword fairy of Shushan, and he had to pass on his swordsmanship skills, and then opened a sword hall in this Qiuchi City." Gao gradually said slowly.

"I see, the Shushan Sword Immortal is rare to see in the world, I don't know if the Sword Immortal is still here?" Xu Mo continued to ask.

"This, a certain family doesn't know, the sword fairy and the dragon can't see the head but not the tail, I'm afraid we can't see it, we can pass on the teacher's sword skills, this life is already infinitely useful, Nie is not too far away!" Gao gradually shook his head and said.

"Remember the guidance of the senior brother!" Xu Mo smiled slightly, changed the topic, and continued, "I just saw the senior brother casting the sword, but the swords in the hall are all cast by the senior brother?" ”

"Yes, the sword forged in a certain family can also rank among the top three in this Qiuchi City, not only Yang [***] Shiduo has someone specially purchased, but the Changfeng Sword used in the teacher's hand is also cast by a certain family!" Gao gradually replied proudly, talking about his sword-forging skills, Gao gradually couldn't help but feel a little complacent.

"Although I don't know how to cast a sword, I also know that the temperature of the furnace is the first to cast a sword, and the higher the furnace temperature, the easier it is to cast a sword. I have seen a thing somewhere, which can greatly increase the temperature of the furnace, I wonder if the senior brother has ever heard of this thing? Xu Mo smiled slightly, and a hint of confidence appeared on his face.

In fact, after seeing Gao Yan's blacksmith workshop, Xu Mo knew that he might have found a key opportunity in the clueless clues, a letter of nomination to integrate into the Sword Pavilion, and even quickly enter the high-level vision of Yang Guo.

Throughout the ages, war is logistics, even if a large country's generals and soldiers are far inferior to a small country, and it has been repeatedly defeated by a small country, it can recover quickly, but as long as a small country fails once, it will be a catastrophe, and the key difference here is the national strength, in other words, logistics.

Logistics refers to manpower and material resources, and material resources refer to grain, grass and weapons. In the Spring and Autumn Period, the weapons equipped by the column [***] team were actually forged by a small workshop like a blacksmith's workshop. It's just that the weapons used by the army have certain specifications, and there are certain rules for the workshop to provide weapons to the army and the royal family.

First of all, it is necessary to cast in strict accordance with the army's weapon specifications, and the error must be within a certain range, and second, after the casting is completed, the name of the caster must be engraved on the weapon, and once a quality problem occurs, the caster must be held responsible.

With the smelting technology of this era, although the weapons produced by these weapons workshops are good or bad because of the difference in the manual skills of the casters, there is actually no fundamental difference in quality.

Due to the limitations of objective conditions and time, Xu Mo could not provide any advanced smelting technology at all, and gave Gao gradually as a step forward, but there was one thing, which could be possessed in this era, and the technical aspect was extremely simple, which could have an immediate effect on the improvement of Gao Jian's sword forging technique.

As a disciple of the Sword Transformation Pavilion, the owner of the Sword Transformation Pavilion is a side branch of the Yang royal family, so this kind of thing that can greatly improve the quality of the army's weapons will definitely reach his ears in a short period of time. Then this disciple of the Sword Immortal, Yang Ye, the owner of the Sword Transformation Pavilion, will definitely summon Xu Mo, and Xu Mo's purpose will be achieved.

However, Gao Yan did not immediately ask as Xu Mo imagined, but frowned and said, "Come with me!" ”

Xu Mo's eyes flashed, and it seemed that Gao Yan was not a reckless man like his appearance, but thick and fine. As a swordsmith, how could he not know how important it was for forging weapons when he knew that there was something that could greatly increase the temperature of the furnace. Gao Yan didn't ask immediately, but wanted to take Xu Mo to a secret place to talk, so as to avoid being inadvertently learned by outsiders.

Gao gradually took Xu Mo all the way to the cellar of the workshop, where many blades and tools wrapped in oilcloth were stored, which were carefully tied into piles with leather, and it seemed that Gao Yan's workshop provided them with standard weapons for Yang's [***] team.

"I don't know what kind of item Nie Li just mentioned, which can really greatly increase the furnace temperature of the sword-forging furnace?" When he arrived at the cellar, Gao gradually finally stopped being patient and asked urgently.

"Yes, when I was young, I used to help work in a workshop opened by a merchant of the Qin Kingdom, and I once saw a thing that can greatly increase the temperature of the furnace, but I didn't see this thing in my brother's workshop, and I suddenly felt a little puzzled!" Xu Mo said slowly.

"What is it?" Gao Yan was still a little puzzled, in the years he had become a swordsmith, he really hadn't heard of it, there were things about casting that he hadn't seen. However, among the Spring and Autumn Kingdoms, Yang was only a small country after all, and if it was a powerful country like Qin, it was not impossible to have something that he had never seen before, so Gao Yan still humbly asked Xu Mo, a layman, for advice.

"This thing I have seen is like this......" Xu Mo described one thing in a more and a row.

As soon as a swordsmith like Gao Jian heard this, he knew that Xu Mo didn't make it up. Because the structure of this thing is too simple, it is easy to make, once it is used in casting, I am afraid that it is not only as Xu Mo said, greatly increasing the furnace temperature, I am afraid that it will cause a big change in the entire foundry industry.

The more Gao gradually listened, the more frightened he became, and finally stood up with uncontrollable excitement and said to Xu Mo:

"Brother Nie Li, what you said is not trivial, you should go back to the Huajian Pavilion now, and don't go out in the hall. A certain family went to see the teacher and told the teacher what you said. If Yang Guo has the help of this thing, the soldiers will be strong and strong, and Jiang Guo will be destroyed this time! ”

After saying that, Gao gradually stood up excitedly, and after pacing back and forth in the cellar for a few times, he no longer hesitated, urging Xu Mo to get up and go back. Xu Mo was helpless, so he had to get up and go back to the Sword Pavilion according to his words.

In fact, the thing Xu Mo said appeared in the late Spring and Autumn period of the real world, the early Warring States period, and in this era, it is not surprising that some other powerful countries have appeared in some workshops.

The thing that changed the history of ancient foundry was the bellows. In a rectangular box that acts like a cylinder, the piston is pushed and pulled out, and some soft feathers or folded silk cloth are filled around the piston to ensure that it is both airtight and lubricated on its passages.

There is an air valve at each end of the box: when the piston is pulled out, air is sucked in from the far end; As it is pushed, air is sucked in from the proximal side. In the inward and outward piston pull, air is sucked into the cylinder; In both cases, the compressed air is pushed into the chamber on the other side of the bellows, where it is sprayed into the furnace through the exhaust port. The bellows can not only blow air, but also spray ~ liquid.

It is described in Lao Tzu's philosophical masterpiece "Lao Tzu's Tao Jing" as follows: Between heaven and earth, it is still like a dragon? Void but unyielding, moving and getting more and more. (This means that the more you push and pull it, the more air volume is given.) Isn't heaven and earth like a bellows? It is empty, but it is not endless. ）

After Xu Mo returned to the Sword Transformation Pavilion, he silently lay on the stone bed and thought. Relying on the bellows, he was able to enter the field of vision of Yang Guo's high-level leaders, thus occupying a favorable position in the subsequent guidance of the space.

In fact, Gao gradually reacted a little too much to learn of the existence of bellows, he was a swordsmith himself, so he was able to understand the significance of bellows for casting very deeply. Although the bellows can greatly increase the temperature of the furnace and thus greatly improve the quality of the weapon, it does not have much impact on this war.

The reason is very simple, Yang Guo is only a small country, even if there is an epoch-making change in casting technology, it is unlikely to replace all the weapons of the army in a short period of time, Yang Guo does not have such a large financial resources, at most in the weapons and armor of some important generals to be replaced.

As a small country, Yang Guo has obtained this secret, which may have a very big benefit in the short term, but in the long run, it will not be able to protect this advantage for a long time. Once a powerful country learns that the quality of Yang Guo's weapons has been greatly improved, then Yang Guo will either announce this technology or die for the country.

In addition, if the bellows technology can really play a decisive role in the war between Yang Guo and Jiang Guo, then Xu Mo really won't hand over the bellows to Yang Guo for the sake of this immediate benefit. In that case, once Jiang Guo learns about this, he will be no different from joining Yang Guo directly, and he will completely cut off the opportunity to join Jiang Guo.

After staying in his room for almost three hours, there was a knock on Xu Mo's door.

"Brother Nie Li, are you still in the room?" Outside the door, Gao Yan's broken gong-like voice sounded.

"Away from the room, senior brother wait a while!" Xu Mo got up from the stone bed, opened the door, and saw Gao Yan's swarthy face full of horizontal flesh.

"Nie Li, come with me, the teacher is waiting for you in the lobby, I didn't expect you to see the teacher on the first day you enter." Gao gradually said happily to Xu Mo.

Xu Mo smiled slightly, Yang Ye, the owner of the Sword Pavilion, was not a swordsman who only knew martial arts among the people, since he was a side branch of the royal family, if he didn't realize the huge value of the bellows, it would really be unexpected for Xu Mo.

As Gao gradually moved forward, the two of them had already arrived at the lobby of the central hall of the Sword Transformation Pavilion in a moment, and there were already two people standing there, one was Qingsheng, who was a little bookish, and the other was a tall middle-aged man with his back to Xu Mo, who seemed to be Yang Ye, the owner of the Sword Transformation Pavilion.