After deciding to use the mecha exchange permission, Ling Feng ordered the system to open the equipment exchange shop and quickly entered the mecha exchange area.

The giant display screen flashed suddenly, and a picture of all mecha appeared, and within the screen, nineteen pictures appeared, and the equipment in these pictures was all mecha.

These mecha include Razer JZ-10 to Razer JZ-90, nine main battle mechas, among which Ling Feng already has the third-generation main mecha and the seventh-generation main mecha, which also have them.

In addition to the main combat mecha of the Razer JZ system, there are also many defensive mechas, and the models of defensive mecha are JF-10 to JF-90, which are also from the first generation of defensive mecha to the ninth generation of defensive mecha.

The exchange price of these main battle mechs and defense mechs is much more expensive than that of some main battle tanks, and some mechs are even more expensive than the exchange price of the ninth generation robot.

From Razer JZ-10 to Razer JZ-90, their exchange price is as low as fifty thousand and as high as six million. For example, the exchange price of the ninth-generation main battle mecha is as high as six million. As for the third- and seventh-generation main battle mechs that Ling Feng now has, the exchange prices for the two of them are 200,000 and 1 million respectively.

The exchange price of the other nine defensive mechs is basically the same as that of the nine main battle mechas.

The main battle and defensive mecha occupied eighteen pictures, and there was one mecha in the picture, which deeply attracted Ling Feng, because the exchange price of that mecha was as high as 20 million!

Suddenly. Ling Feng was shocked by the mecha in the picture, what kind of mecha is this? Why is its exchange price so terrifying, as high as 20 million, which is several times more expensive than the military early warning satellites he exchanged.

It turned out that in the last mecha picture, there was a golden mecha, which was much stronger than the other eighteen mechas, both in terms of shape and production process.

At the same time, the model of this gold-colored mecha is special: Razer GZ9000.

Ling Feng was full of doubts. He turned his head to look at Tarzan standing behind him. He asked, "Tarzan, what kind of mecha is this Razer GZ9000?" Why is it so expensive to exchange and it's amazing? ”

Hear that. Tarzan nodded. "Yes." Sir! This Razer GZ9000 is one of the most advanced weapons and equipment in the current unlimited arsenal. It is also one of the most expensive individual combat equipment to exchange. This Razer GZ9000 is a specially developed assault equipment from Razer, and it is not comparable to other mecha in terms of mobility and armed firepower. ”

"Is its operating system complicated?" Ling Feng continued to ask.

"The control system of Razer GZ9000 is very simple, and it also has the functions of air interception, assault, deep-water ambush and anti-submarine! To put it bluntly, it can be said to be a multi-functional attack armor of sea, land and air! Tarzan replied respectfully.

Ling Feng never thought that this Razer GZ9000 could not only fly in the sky, but also go into the water, so this mecha was really powerful.

At that moment, he didn't think about it and ordered the system: "I want to exchange for a Razer GZ9000!" ”

As soon as these words came out, the system prompt in the giant display screen sounded suddenly: "May I ask the chief to confirm, whether you can use a mecha to exchange for a Razer GZ9000 attack armor?" ”

"Yes, I'm going to redeem it!" Ling Feng said without hesitation.

"Congratulations sir, on successfully redeeming a Razer GZ9000, now please accept the armament!" The system prompt sounds, and it rings again.

A moment later, next to the giant display screen, a burst of light suddenly flickered, and when the dazzling light faded, a golden mecha with golden light and incomparably tall appeared in front of Ling Feng's eyes.

Looking at the giant mecha with a metallic luster in front of him, Ling Feng muttered excitedly: "This appearance is really dazzling, I feel extremely powerful when I look at it!" ……”

At this time, the robot Tarzan walked to the side of the mecha and began to introduce it. "This Razer GZ9000 attack mecha uses a miniature nuclear power drive system, it is 8.2 meters high, weighs 16 tons, and can control the speed of walking at will, and the speed of flat assault can reach up to 250 kilometers per hour. The speed of air flight assault can reach up to 1,500 kilometers per hour, the speed of underwater diving, more than 86 nautical miles, and the maximum diving depth of more than 200 meters.

At the same time, the weapons on this mecha are all A-level tactical lasers, and the best attack range of these laser weapons is within twenty kilometers. Beyond this range, it depends on the influence of the climate. At present, all the laser weapons on the mecha rely on the high-energy armed battery for energy conversion and supply, so it takes a lot of high-energy armed batteries to control this Razer GZ9000 battle armor, but with its super mobility and attack power, it is definitely an excellent killing weapon for you in the future, sir.

No matter who it is, as long as he drives this Razer GZ9000, then he is the master of the entire battlefield, he can easily intercept the enemy's planes and missiles, and in the shortest possible time, carry out a surprise attack on the enemy, and inflict a powerful military blow on the enemy, because this attacking mecha, its threat and deterrence to the enemy, is too powerful. Hence this Razer GZ9000, which also has a famous nickname: God's Gift! ”

"A gift from God?"

After hearing this title, Ling Feng's body shook slightly, and he nodded secretly: "If this Razer GZ9000 is really so powerful, then if you control it to the battlefield in the future, you will really go to the sky and the sea, and you can do anything...... God's gift, is this title still quite appropriate? It seems that this mecha is really sharp! ”

After successfully exchanging this Razer GZ9000 gold mecha, Ling Feng's thirty minutes of entering the infinite arsenal were almost over.

At this time, he went to the auxiliary warehouse to take a look, but it was okay not to look at it, and he was shocked when he saw it.

It turned out that next to the auxiliary warehouse, some steel and cement and other building materials were piled up millions of square meters in the arsenal, especially those cement and steel, which were piled up dozens of meters high, and from a distance, they were as scary as a mountain.

According to Ling Feng's visual inspection, these tens of thousands of robots have just moved nearly 100,000 tons of cement and steel in the auxiliary warehouse, and there are countless other building materials.

With so many building materials and transportation, it should be enough for hundreds of thousands of robots to use for a few days.

Thinking of this, he chose to quit the Infinite Arsenal, as for the tens of thousands of robots in the arsenal, Ling Feng didn't plan to summon them, anyway, those robots have been staying in the arsenal for the past few days, constantly carrying all kinds of materials outside.

Because, if they don't move those materials out, they can't transport Tarzan directly from the auxiliary warehouse. Only after he first got those building materials out of the auxiliary warehouse, Taishan would transmit hundreds of thousands of tons of cement, steel, water pipes and wires and other miscellaneous things according to his own requirements.

When he returned to the entrance of the cave, it was already more than nine o'clock in the morning, and at this time, he contacted the robots in other places in his mind to see when they could reach Jiushi Mountain in the fastest wave.

After about two o'clock in the afternoon, the robot army scattered in various places rushed to the foot of Jiushi Mountain in an endless stream.

After five o'clock in the afternoon, nearly 200,000 eighth-generation robots have come to the entrance of the cave at the foot of Jiushi Mountain.

Ling Feng saw that there were already 200,000 robots, which should be enough to enter the cave to start work, so he immediately contacted Taishan and asked all the steel, cement and other building materials in its warehouse to be transmitted out in one go.

Suddenly, all kinds of materials were piled up around the foot of the entire Jiushi Mountain.

Looking at the piles of building materials like mountains, Ling Feng took a deep breath and gave an order to all the robots waiting in place, asking them to start work immediately, and transport all these steel and cement to the karst cave, and must complete the karst cave renovation and construction plan as quickly as possible.

As for the construction plan of the inside of the cave, just in the afternoon, it had already ordered dozens of ninth-generation robots to enter the cave to scan and record it, and let them design and plan according to the terrain and structure inside the cave, and be sure to make good use of every inch of space in the cave.

After issuing a series of task orders to these robots, Ling Feng left here with more than a dozen ninth-generation robots.

As soon as he left, the 200,000 robots that remained in place began to act. I saw that they were moving cement, carrying steel, and some robots were using explosives, preparing to open up the entrance of the cave a little wider.

In short, after Ling Feng left, these robots were all busy one by one. From afar, Ling Feng could hear the sound of steel smashing and the roar of cement mixer trucks in the direction of Jiushi Mountain...... (To be continued......)