It requires both high strength and low weight. It is impossible to do it in terms of the materials currently mastered by the Ministry of Industry. However, if Li Mu has a system in his body, the situation will be different.

When forging this skill, when the primary level, there is only one auxiliary skill, which is melted. When it reaches the intermediate level, there is another refinement. Now when it reaches the advanced level, there is another auxiliary skill - alloy. It is this skill that gives Li Mu the confidence.

[Alloy: One metal is mixed and melted with another or several metals or non-metals, and then cooled and solidified to obtain a solid material with special metal characteristics.].

Since it is for higher protective strength, the first choice is of course alloy steel.

Iron-carbon alloy composed of an appropriate amount of one or more alloy elements on the basis of ordinary carbon steel. Depending on the different elements added and appropriate processing technology, special properties such as high strength, high toughness, wear resistance, corrosion resistance, low temperature resistance, high temperature resistance, and non-magnetic properties can be obtained.

Alloy steel can be said to be everywhere in Li Mu's previous life. Ninety-nine percent of all the "iron" things to see are alloy steel. There are a wide variety of alloy steels, with as many as tens of thousands of types. Some special steels, such as steel used in the military field, are specially produced, which is difficult for ordinary people to reach.

Fortunately, there is a system in place to solve this problem.

According to the system's needs, Li Mu synthesized it with ordinary iron ore, meteorite and charcoal in a certain proportion and successfully made a high-strength alloy steel. At the same weight, the protective strength of this alloy steel is five times that of ordinary iron plates. With it, the plate armor that originally required fifty kilograms of iron, but now ten kilograms of alloy steel can achieve the same protective effect, which is thin and light.

The effect of alloy steel made Li Mu very excited. But after looking at the material consumption list, he calmed down instantly. A truck of iron ore and two pieces of meteorite could only synthesize less than 80 kilograms of alloy steel. Eighty kilograms of alloy steel can barely create two sets of plate armor. In fact, the cost of a set of plate armor is as high as more than 1,000 jin.

If you use this alloy steel to arm a cavalry, a rough calculation will cost at least ten million trump cards.

Who can afford this? Even Li Shimin only wants to arm a cavalry with millions of stakes. What's more, even if he has money, he can't mine so much iron ore and meteorites that provide rare elements under today's conditions!

Therefore, alloy steel is destined to be scarce. Perhaps it will be difficult to make another set of plate armor after creating Li Chongyi.

Li Mu carefully calculated the weight required for each component. After calculating, there were about 30 kilograms left. After thinking about it, he decided to re-train Li Chongyi’s existing [Blood Prison Battle Axe] and add this rare alloy steel to it. Moreover, when he built the [Blood Prison Battle Axe], he was just an intermediate forging. Now he has been in advanced forging, and the forged attributes must be much stronger.

A set of high-end plate armor, plus two advanced weapons. Such a configuration, in the game "The Legend of the Tang Dynasty", must at least be equipped by the main warriors of the medium gang.

A day passed in the process of smelting the synthetic materials. During the evening meal, Li Mu calculated the total cost of the materials, which was as high as 3,000 guan. This was not counted as the red copper that was about to be added when building armor. If it were counted, it would be at least twice as much.

Adding the six thousand slabs of buying drawings—

Li Mu's mind started to hurt again. Such a way of spending money is really hard for ordinary people. Li Mu glanced at Li Chongyi, who was heartless and gnawing on the legs of lamb, and said to himself, "Silly brother, if you go to Zhenla this time and don't make some contributions for your brother, you will really be sorry for your brother's heart... and you will also spend the money in it!"

That night, I fell asleep again. The next morning, the sound of a blacksmith sounded again. The materials were ready yesterday, and this time it was very serious.

The first piece of equipment Li Mu created was the rebuilt [Blood Prison Battle Axe]. The entire battle axe was melted and removed impurities were mixed into alloy steel to rebuild. It was finally completed in the whole morning.

[Blood Prison: purple quality one-handed axe. It looks like a tiger's teeth, open and close, with a mighty and domineering force, red silk all over the body, and blood is like a siphon, so it is called "Blood Prison".].

[Basic strength demand 20].

【Endurance 10】．

The quality has been upgraded from blue to purple, and the weight has been reduced from 81 pounds to 64 pounds. The increased attribute points have changed from 3 points of strength and endurance to 10 points, which is a good improvement.

After lunch, the two brothers started to build another axe, which can form a suit with the [Shura Battle Axe]. At dusk, the [Shura Battle Axe] will also be formed.

[Shura: purple quality one-handed axe. It looks like a dragon scissor, open and close, and is fierce and fierce. It devours the soul and kills people without any calculations, so it is called "Shura".].

[Basic strength demand 20].

【Strength 10】．

In order to balance the left and right hands, Li Mu also controlled the weight of the axe to 64 kilograms. Adding 10 to the power is also a good attribute for the warrior. What made Li Mu even more excited was that with the birth of [Shura], the set attributes composed of two axes were also displayed.

[Bloodthirst: The bloody breath causes the warrior to enter a state of anger, forgets the pain, and wields two axes to cruelly suppress the enemy.].

In short, the effect of this suit is to become more courageous as the battle becomes. For a violent battle, it is definitely a top-quality attribute.

Li Mu used the remaining alloy steel to make two iron chains. Both ends of the iron chains were covered with organic brackets. They could connect the two axes together and connect the axes to the arm guards. No matter how Li Chongyi used them, when he rushed into the enemy formation and used the "whirlwind slash", the axes would not fly out and could not be found.

Eat and sleep. On the third day, Li Mu and Li Chongyi began to create the [Blood Refining Armor].

Creating armor is much easier than building weapons. One morning, helmets and breastplate were created. At dusk, I spent a little extra shift, arm guards, skirt armor, and waist guards were also created.

But this time I didn’t have the luck of yesterday. The entire set of armor was all blue and there was no purple equipment.

[Blood refining helmet: Basic strength requirements: 10, endurance 5.].

[Blood refining and chest protection: basic strength needs 10, strength 5.].

[Blood refining and waist protection: Basic strength requirements: 10, endurance 3, strength 2.].

[Blood refining skirt armor: basic strength requirements: 10, endurance 2, strength 3.].

[Blood refining arm protection: basic strength requirements: 10, endurance 5.].

[Blood Refining Armor 2/5: Strength 10.].

[Blood Refining Armor 4/5: Endurance 10.].

Although Li Mu was a little disappointed, it did not affect his appearance at all. Moreover, Li Chongyi's physique was posing there. Wearing this domineering armor with dark red light due to the addition of red copper, and the two axes of Blood Prison and Shura, it was like a god of killing appearing. Those who are timid can be scared to death.

“How does it feel after putting it on?”

Li Chongyi moved for a while and said, "It's not much heavier than leather armor."

When Dugu Jiu heard this next to him, he frowned and said, "Brother, can such a light armor protect against arrows?"

"Arrow?" Li Mu smiled. Just as he was about to ask Dugu Jiu to draw his sword and chop it, he suddenly remembered that his sword was golden equipment and had the characteristic of "cutting iron like mud". He quickly put it back and changed his words: "Don't worry, ordinary arrows will definitely not be damaged, and they won't even have a mark. If you don't believe it, go and try a crossbow."

Dugu Jiu was still real, so he turned around and went to get it. There was a crossbow in Li Mu's car. This was what he needed to prepare for from time to time. If someone besieged him and Dugu Jiu did not respond in time, he had a crossbow that could withstand for a while.

Li Chongyi also wanted to know the protective strength of the light armor. When he saw Dugu Jiu coming back with a crossbow, he asked him to shoot arrows on him. Dugu Jiu refused, and the crossbow pulled off the mechanical scoop and the arrow flew out. He was worried that if the protective effect of the armor was not good, it would hurt Li Chongyi.

Li Chongyi repeatedly said that it was okay, but Dugu Jiu refused and had no choice but to take off his breastplate and hang it on a tree for experiments.

Dugu Jiu pressed the Ji Kuo, and ten short arrows shot out quickly. He only heard the crisp sound of ping-pong, and then looked at the armor, and there was no damage at all. The ten short arrows were cut and flew away elsewhere by the curve of the surface of the breastplate, and none of them caused any damage.

After the experiment, Dugu Jiu finally felt relieved. He was happy to see that Li Chongyi had such good armor on his body. After working for three days, it was a complete success. There was still a little alloy steel left and was not used, so Li Mu carefully put it away. He planned to make a dagger or something for self-defense when he had time in the future.

Tomorrow is the day to set off. In the past three days, Li Mu kept asking for instructions to prepare for Li Chongyi's trip. The blacksmiths in the factory temporarily stopped building plowshares and made crossbow arrows with all their might. In three days, a lot had been saved, enough for the five hundred Jinyiwei to use. Li Mu also greeted Liu Shenwei. He prepared emergency medicine packs for Jinyiwei, and whether it was internal injuries, external injuries, miasma poisonous snakes, etc., and could deal with them. On Wang Ou's side, Li Mu also asked someone to inform her that she had prepared three sets of clothes for each Jinyiwei to change the washing along the way. Li Ying also handed over a message, asking him to prepare several large trucks to transport people, and use them to transport rice seeds when he came back. He even asked Bai Naoer to find a cook and prepare dry food for Jinyiwei...

Everything is fine, and as long as Li Mu can think of it, he has prepared for Li Chongyi. After all, he is still worried. After all, no matter how tall and strong Li Chongyi is, he is only fourteen years old. How could Li Mu be relieved after being out of sight? Li Mu has done everything he can do now. If there is any accident, he can't do it, it can only be said that it is God's will.
Chapter completed!