Yesterday, he had already adjusted the data of the Invisibility Armor to a reasonable range.

Now, it was not as difficult to put on and take off the armor as before, and the next step was to use the existing materials to improve the functions of the Invisibility Armor.

For example, it was impossible to avoid infrared detection, and there were small flaws in the connection of the armor. Finally, there was the appearance problem. Although the pursuit of the extreme practicality of the armor was pursued, the appearance of the armor also needed to be paid attention to.

If these steps were to be broken down, it would probably take more than a dozen procedures.

After he had a detailed plan, he immediately started working.

Wu mo quickly sorted out the materials in the box, then threw the corresponding materials into the furnace for preliminary tempering.

Because the furnace in the casting space had been upgraded, the upper limit temperature of the furnace had been raised to 3100 degrees, so the tempering speed this time was very fast.

It didn’t take long for the heterogeneous materials to turn into a pure fluid, which was poured into the crucible by Wu mo to cool.

After that, he laid the invisible armor on the work table and removed the invisibility devices on it one by one.

This was because he needed to cover a layer of film between the stealth armor and the stealth device to prevent them from being detected by the infrared thermal image.

This process was not difficult for Wu mo. He just needed enough patience because these devices were very fragile. If they were slightly damaged, it could affect the invisibility effect.

Therefore, Wu mo was very careful during the whole process. The film that could block infrared detection was usually only two millimeters thick. In order to ensure that the armor could maintain a normal heat dissipation function, Wu mo also made detailed modifications on it.

It ensured that the heat dissipation function was not affected while it could isolate infrared detection.

The inspiration for this improvement also came from the forging Masters in the Western battle area.

Those master blacksmiths had never even seen the actual body of the invisible armor, but they were able to give opinions that even Wu mo was convinced of. This achievement had simply reached the peak of perfection.

While he was sighing in his heart, Wu mo continued with his other work.

In less than half an hour, he had completed several improvements.

The rest of the work wasn’t difficult for him. After a good start, the rest of the work seemed to be even more satisfactory.

About two hours passed in the forging space, and more than half of the improvement work was already completed.

During this time, he used the casting machine and the upgraded furnace. In the large casting space, his figure was busy, and he was immersed in it.

It was only when his mind became a little groggy and his mental energy was exhausted that he slowly stopped.

Looking at the almost completed invisible armor on the work table, Wu mo felt a sense of accomplishment.

He had completed so many complicated processes by himself, and everything had been done in an orderly manner without using the backtracking function.

Although a big reason for this was that Wu mo had read the annotations of those master blacksmiths, the improvement of his own forging ability was also one of the important reasons.

Feeling the growth in his forging skills, Wu mo was a little excited.

During his time in the fifth Research Institute, his strength had improved even faster than in the divine weapon Academy, and all kinds of theoretical knowledge had been greatly supplemented.

It had basically achieved all-round development in all aspects. It was no longer a Young Eagle that only relied on the system, but an Eagle that had grown feathers and could spread its wings to soar!

Just as Wu mo was sighing to himself, an ethereal voice suddenly sounded in his mind, causing him to be slightly stunned.

ding! Congratulations to the host for reaching intermediate five-star in forging. You have abundant theoretical and practical knowledge in all aspects. You will be rewarded with the forging technique, the fine crystal technique!

The system’s voice echoed in his mind. Wu mo immediately calmed down and chanted in his heart.

The next moment, a dark blue system interface appeared in front of him, showing a translucent state.

On the system desktop that was suspended in the air, lines of text introducing the refinement technique appeared, allowing Wu mo to immediately understand the mystery.

Crystal refinement was a type of forging technique. When forging materials, it could refine the crystals in weapons or armor, making them stronger and tougher.

After reading the instructions, Wu mo immediately felt a memory enter his mind.

This was the operation technique and practical experience of crystal refinement.

Although it was his first time, he had the help of the system, so he quickly mastered it.

After a while, Wu mo took a deep breath. His bright eyes stared at the chaotic space of nothingness, but the corners of his mouth curved up.

“Crystal refinement? Interesting knowledge!”

He muttered to himself, but his heart was still not calm.

After being in the field of forging for such a long time, this was the first time he had learned that there was actually the existence of crystals in metal.

Every time iron, gold, silver, and other metals were melted in the furnace and then cooled down, the crystals would slowly recover. If there was no interference in this process, the condensed iron or metal blocks would maintain their original performance and hardness.

If a special technique was used to interfere with the metal before it was condensed, the crystal inside the metal would be refined after the condensation, as dense as gravel turning into sand.

The compact and fine crystal structure would change the original hardness of the metal, making its performance more excellent.

Wu mo was surprised because he didn’t know that there were crystals inside the metal. He thought that there were only corresponding elements and that melting them was just to make the metals fuse better.

The crystal refinement technique was a blind spot for him!

If he hadn’t received the system’s reward and come into contact with this kind of information, he would probably never have known this kind of knowledge in his entire life.

This was a more terrifying existence than the information cocoon room.

A single piece of knowledge had already broken his worldview. There must be more existences that were more powerful than the refined crystal technique in the entire field of forging.

And those things could never be touched by imagination alone.

The knowledge was like a small light spot in the forging world, and the Galaxy above was formed by countless light spots.

In the field of forging, the techniques and principles that he understood now were just insignificant grains of sand in the world of forging.

At the thought of this, Wu mo felt all the hair on his body stand up. He felt as if an electric current had passed through his body, making him numb.

To him, those forging techniques were simply out of reach. He was afraid that even if he spent his entire life, he would not be able to fully understand them.

However, even though the road was long, Wu mo did not plan to give up. He only felt that he was extremely small in the field of forging. In the hundred years of history, he was not worth mentioning in front of those great people.