Exiting the gene laboratory that has not yet been opened, Chen Fei entered the main interface of the manufacturing function, the thickened bulletproof steel plate has been completed at this time, Chen Fei took out a thickened bulletproof steel plate from the inventory, and the hard knocking will make a dull sound, just listening to the sound gives people a solid and heavy feeling of reliability.

Chen Fei does not plan to put these thickened bulletproof steel plates into use for the time being, compared to welding them outside the pickup truck, Chen Fei feels that there may be a better way to use them, so it is better to be a little cautious when using them.

According to the prompt, upgrading this second-level manufacturing function to the third-level still requires some more manufacturing to be possible, and it is necessary to reach enough manufacturing proficiency, so Chen Fei simply made 25 thickened bulletproof steel plates and 10 spears, so that it can basically meet the conditions of the manufacturing level.

Now Chen Fei can finally see what the new items are unlocked after the manufacturing level is increased again, there are five in total.

The first is the combat suit, judging from the style shown in the picture, the design of these combat suits is somewhat futuristic, a bit similar to the costume of a racing driver, and from the detailed information introduction, this combat suit seems to be only the lowest level of combat clothing that can be made by manufacturing functions.

Don't look at it as just the lowest level of combat clothing, but because the fabric made of this combat suit is a kind of technology that does not belong to the earth, although it is an ordinary thick cloth on the outside, it has the basic function of bulletproof, and because the material uses nanotechnology, you never need to worry about stains.

This combat suit is not the item that Chen Fei is looking forward to the most, but if you think about it carefully, it also has a great use, the most basic thing is that when you conflict with other survivors, it can greatly increase the chance of survival.

To sum up, this combat suit has stronger bulletproof ability than body armor, but it is not as heavy as body armor, and it also has many other advantages.

It's just that when Chen Fei saw the materials he needed, he felt that his head was big for a while, don't look at this is a combat uniform, but there are as many as 18 kinds of materials needed!

In addition to some fiber fabrics, there are many rare metals, if some of them were not available in the material space, Chen Fei would definitely give up the idea of making.

As for the other two manufactured items, Chen Fei was a little puzzled and a little expectant at the same time,

They are semi-automatic rapid-fire steel crossbows and stainless steel crossbow arrows.

It would have been a joy to be able to make steel and steel crossbows before we had those guns and ammunition from the arsenal, but now it was the icing on the cake at best.

However, if we look at this development trend, some manufacturing functions in the future will definitely be able to manufacture some guns and ammunition and even more powerful weapons, and Chen Fei has a lot of expectations in his heart when he thinks of these.

The last two items are run-flat tires and metal arm guards.

The importance of run-flat tires does not need to be thought about at all, and it plays a vital role in the fleet.

And the role of the metal arm guard has little impact on Chen Fei, but for ordinary people, although it only protects the lower arm, in the hand-to-hand combat with zombies, a pair of metal arm guards can prevent being bitten by zombies to a large extent, and the matching of combat clothes can meet the basic combat needs.

Chen Fei imagined for a moment, if he and Mu Meiqing Nangong Jin all wore uniform combat uniforms, it would be more like a team of survivors who survived the last days, and even became a symbol of their team.

The function of the camp was similar to what Chen Fei expected, and the reinforced concrete building structure was unlocked at the third level of the camp, but what made Chen Fei feel helpless was that his construction progress was far behind the progress of the camp upgrade, and it was too troublesome to collect building materials.

I'm afraid that in the days to come, he will have to run between factories of various building materials, and the most painful thing is that the military that built the security zone will compete with him for these building materials.

Chen Fei felt helpless, if he couldn't make his own factory, he would never be able to solve the problem substantively, and as time went by, it would become more and more difficult to collect these building materials.

Fortunately, today Chen Fei took the lead in emptying the brick factory, sand factory, cement factory and steel factory, if he is not in a hurry to upgrade the camp to the main structure of reinforced concrete, first of all, the cement and sand reserves can basically meet the construction requirements of the brick wall camp.

The current construction of the camp is not enough to upgrade the camp to the third level, so Chen Fei continued to start the construction of the camp with nothing to do.

After going to the Xiaosang Mountain safety zone, Chen Fei may have to start facing the problem of finding a suitable place for the camp, and he can't always drive around aimlessly every day.

Chen Fei directly overturned his previous construction idea, he merged the two walls into one, and enclosed the 100-meter span of the second-level camp in the wall, and the thickness of the wall was also increased to 50 centimeters, and the height was 3.5 meters.

At this level, as long as you don't meet mutant zombies, it is enough to defend against the impact of those ordinary zombies.

The two buildings inside the camp were also upgraded by Chen Fei to a very brick structure, and the six-square-meter two-story building was expanded by Chen Fei to a two-story building of one hundred and twenty square meters, and more than half of the space on the entire floor was used to repair vehicles.

Through the collection of various items during this time, the supporting facilities of the two buildings have been basically complete, and as long as there is water and electricity, they can be put into use like a normal community.

Chen Fei is most satisfied with the restoration of the second floor of their three-story building, all the furniture is perfectly restored according to the home in his memory, and it has reached the level that he can move in with his bag.

Although it seems that the camp is still a bit monotonous, just a wall and two buildings, fortunately, it already has some living conditions.

Before the bricks were about to run out, Chen Fei built a one-story building ten meters wide and twenty meters long next to the wall, which made the construction of the camp meet the requirements of upgrading to level three.

After the camp is upgraded to level 3, the space that can be used for camp construction directly expands to a square area of 300 meters, which is 200 meters higher than the 100 meters of the second-level camp.

Chen Fei didn't feel any joy about this, the camp could not be built in a day, although he saved the time-consuming and labor-intensive link of labor, but after all, he needed to collect building materials himself.

Chen Fei couldn't help but slander in his heart:

This Nima is a hammer apocalyptic ruler system, and it is clearly a post-apocalyptic construction tycoon system!!

However, what made Chen Fei feel relieved was that after the camp was upgraded to level 3, the scanning function was also upgraded, and some infrastructure could be scanned into the camp, and it could be put into use directly.

For example, Chen Fei's biggest concern about hydropower can be solved, drinking water can be scanned by a drilling rig to drill a well directly in the camp, and as for electricity, solar panels and huge wind turbines can be scanned, and then the construction can be completed in the camp.

Solar panels are like huge wind turbines, and they can't be transported without lengthened heavy trucks, but this is the most headache for the military, and Chen Fei only needs a scanning function to get it.

Once the water and electricity problems are solved, the camp will be officially operational!

Chen Fei opened his eyes and slowly stood up, he spent two hours casually putting some energy into the camp function page, and when he withdrew from the camp, he felt that his body was already sitting a little stiff.

stretched hard, looked at the sky that had gradually darkened, and subconsciously let out a sigh.

Alas...... It's time to leave!

The dinner was very sumptuous according to Chen Fei's request, and Chen Fei did not hesitate to take out some frozen meat to share with the villagers, and many people knew that this might be a big dinner before leaving the village.

But everyone tacitly didn't say it, and one night can be regarded as eating and drinking.

Wang Xiyu looked at the joy in front of him, and his heart was a little dazed for a while, but the poor Wu Er's fat man's superb cooking skills were tasteless by him, for Wang Xiyu now, no matter what he eats, it is just to fill his stomach.

Wang Xiyu doesn't know what he is going to do next, is he going to continue to wander aimlessly? Or stay in this team for a while?

As soon as he thought of that powerful giant zombie, Wang Xiyu subconsciously clenched the crystal cross hanging around his neck, and the negative emotions of sadness and hatred surged towards him like a tide in an instant.

Seeing his heartbeat and breathing become chaotic little by little, the crystal cross that belonged to the woman emitted a faint amber light.

Wang Xiyu only felt that there was a warm current swimming all over his body along his palms and arms, making his irritable mood calm again.