Suppressing the ecstasy in his heart, Tang Yizhou quietly waited for the opening of the second floor of the mechanical key. Yes, yes, a total of one golden energy ball and 5/5 blue industrial balls will inevitably be opened.

A few seconds later, the mechanical attribute bar he saw in his eyes fluctuated slightly, and the complex, chaotic mechanical parts on it, which had a steampunk-like beauty, ran in irregular motion, making a cracking sound.

It's true, Tang Yizhou swears that this is not an illusion.

Layers of dust, rusted debris, and a smell that has been decaying for a long time. Grandma's, you can actually smell it. Do you think you are a 5D movie...

But no matter how Tang Yizhou complained, the changes in the mechanical attribute bar were really similar. After about one minute, the general style of the entire mechanical attribute bar did not change, and it was still a steampunk style. However, the position of some mechanical components has changed, and the overall layout is not so messy, with a look that looks slightly pleasing.

But the most important thing is that above the mechanical property bar, the golden energy ball turned into a small golden light, paralleling with the blue light next to it. At this time, Tang Yizhou noticed that there was a row of small pits similar to them behind, so this means that there are more types of electric light balls in the future?

Soon, as the golden light and blue lights lighted up, under the flare of these two lights, lines of handwriting information quickly emerged...

"You have obtained 1/1 golden energy ball and 5/5 blue industrial balls in total. You have unlocked the second layer of the mechanical key and received a reward. Your life power limit will be permanently increased by ten grids, and you will get a gray mechanical creation drawing - Magnetic blade grenade."

"Because you have enabled the second layer of permission, you will get a free friend prompt - you will get a total of 3/3 golden energy balls, a total of 30/30 blue industrial balls, a total of 5/5 red detection balls, and will open the third layer of permission of the mechanical key and get a reward, a white mechanical creation drawing."

"Note: After the golden energy ball, blue industrial ball, and red detection ball obtained, they do not affect normal use or accumulation of permissions."

"Another note: The golden energy ball is the most important and core material for building mechanical creations. Please do not waste it easily."

——

"Tsk tsk! Magnetic blade grenade, why don't you say it's a magnetic link?"

Tang Yizhou thought strangely, if someone threw a magnetic blade grenade when he was calling the poster a good person, it would be very interesting...

At this time, there was indeed a yellow drawing floating in the mechanical attribute column, covered with spider silk and dust. Tang Yizhou subconsciously grabbed it with his hands, and he really grabbed the drawing. This scared him and turned it into a real object?

No, this thing was originally a real thing. Just as he guessed at the beginning, even the mechanical attribute bar he saw in his eyes was a real thing, but it was not in the spatial dimension where he was...

"I always feel like this..."

Tang Yizhou stumbled for a second, shut up decisively, and in front of his life, everything else could be abandoned.

At this time, he carefully checked the yellowed drawings on this page. The paper was just plain paper, as if it was casually pulled out of a garbage can.

There are some instructions printed in Chinese characters above, and they also draw floor plans, sections, and elevational views. In short, he doesn't understand any of them.

But he still understood the explanations because they were really simple and clear.

"Using a golden energy ball, you can create a set of magnetic blade grenades (10)."

"The production method is to use the cutting skills to cut out blades that meet the standards according to the drawings. Each magnetic blade grenade requires 100 blades that meet the specifications. After assembly, it is magnetized and processed through a golden energy ball for 1 hour to obtain a magnetic blade grenade. The magnetic force is valid for 15 days."

"Note: Magnetic blade grenade can only be activated by throwing, and the magnetic device can be activated after touching. Under the action of magnetic force, one hundred blades will rotate clockwise at a speed of one hundred kilometers per hour in a space with an area of ​​nine square meters and a height of three meters at a high speed of three seconds."

"Note: The golden energy ball can also be used to recharge the charge in emergency situations, and each can replenish 100 units of electricity."

——

"So in fact, as long as I cut out a blade that meets the specifications and assemble it, it is equivalent to making a magnetic blade grenade, which is really simple."

Tang Yizhou became interested at this time. He thought it was so complicated before, but now he suddenly felt that it was completely fine. He just cut the blade. Do you really think his cutting skills are decorations?

"However, if the golden energy ball is the core material for making mechanical creation, then what about the blue industrial ball and the red detection ball? If I get more mechanical drawings in the future, most of the materials needed in it will be used, right?"

"So if you have the opportunity in the future, you can store some such energy balls and industrial balls... Well, it seems like you are a cabbage, and you can see it everywhere."

Tang Yizhou laughed at himself. This matter must start with strengthening his own combat power. Now the No. 2 crossbow and No. 3 crossbow have already formed combat power. He only needs to practice archery every day. The other focus is to make magnetic blade grenades. If he can make a set, he thinks he can try to destroy the mechanical black bird tribe!

Next, he focused on the blue industrial ball.

Sure enough, this thing has its own secrets and has three uses.

The first one is used to open the skill tree.

Opening the skill tree means that no matter whether it can be used or not, take up the pit first...

For example, when he just obtained the mechanical attribute bar, he brought a basic industrial skill with his left and right hands, welding and cutting, which can be roughly regarded as the backbone of the skill tree.

After each assigned a blue industrial ball, the welding of the left hand also produced an additional branch skill called smelting, and the cutting of the right hand also produced an additional branch skill called strengthening cutting.

If he continues to invest in the blue industrial ball in this way, he can only use two to open another branch skill, invest another four, and open another eight, and open another one. As the saying goes, occupying a pit will not stop, my heart will be eternal.

But in fact, this approach is not advisable.

Because if the skills are enabled, it does not mean that you can fully master it, because the skills themselves have levels and proficiency.

For example, when driving, some are toy cars driven by elementary school students, some are old drivers, and some are Akima Mountain bike gods, which cannot be compared with each other.

Therefore, the second purpose of the blue industrial ball is to increase proficiency. One piece can increase one hundred points, buy it clearly and sell it clearly, and be honest without any deception.

As for the third purpose, it is very simple, which strengthens the metal characteristics, similar to magic enchantment, which increases a certain characteristic of metal by 10% on the original basis.

So this is a good thing, and it is a good thing that has strategic significance and can determine the world in one fell swoop.
Chapter completed!