Now in the entire Mexican border, less than one in ten people have a tunnel.
This is due to the relentless attacks of the UA border police and the increasingly advanced detection equipment sent by the UA.
The tunnel here refers to the kind dug tens of meters deep underground, with a length of several kilometers, and a complete lighting and ventilation system. It has regular private houses or warehouses for cover, connects the small towns of the two countries, has confidants guarding the entrances and exits, and has many high-level underground passages with hidden exit measures.
As for the kind of simple pit dug under the wall with wooden planks for support and grass for cover, it is not a tunnel at all. Lopez prefers to call it "dog hole."
Last year alone, the UA Border Police found more than 20 dog holes. The way they deal with the dog holes is very simple. They directly pull two trucks of concrete, pump concrete into the dog hole, and engrave the date as a souvenir.
Lopez's tunnel was built 30 years ago and is one of the oldest tunnels in Zavarro City.
This is thanks to Lopez's father, who has an international vision and foresight.
At that time, his father and five brothers worked together in the United States. Later, they saw many people trying to smuggle into the United States from the Mexican border.
After they made money, these people would try every possible means to return to Mexico and return home in glory.
This made his father, Old Lopez, smell a huge business opportunity. Immediately, he returned to Mexico with the five brothers and spent several years digging a hidden tunnel to collect high transportation fees from these people.
The Lopez Family had relied on this tunnel to start their business. Today, the exit of this tunnel had been changed many times.
"What kind of detection equipment is used in the United States?" In the office, Ye Qing asked with great interest, the Mexican businessman who was somewhat restrained for some reason.
"It should be a vibration sensor. Since the United States installed some detection equipment on the border three years ago, if someone digs a tunnel in Mexico, most of them will be discovered halfway."
"By the way, these devices need to be drilled in advance and buried in the ground."
As Lopez spoke, his eyes kept staring at the exquisite model of the building on his desk.
At this moment, he suddenly realized that the magnificent skyscraper across the road was made by this young man.
How much money would it cost?!
"Oh, by the way, the ones that were discovered were all long-distance tunnels. They were dog holes dug under the wall, and they were often discovered by police patrols. Now, the floor of my tunnel is covered with a carpet. When we walk, I ask them not to make a sound. "
Lopez didn't think it was a big deal to say this. This young president's products had been banned by the United States. How could he have a good impression of the United States?
"That should be an analytical instrument for certain fixed vibration frequencies. A simple vibration sensor would be affected by the vibration of large vehicles."
Ye Qing nodded. "Actually, it's very easy to crack it."
"The simplest way to detect vibrations is naturally to detect mechanical vibrations. Machines have fixed transmission gaps that cannot be eliminated, and there is also a fixed frequency for the spiral blades to rotate into the soil. "
"If you use manual digging, digging today and tomorrow, changing the tools, the instrument will naturally not be able to detect it."
Lopez was stunned. Could it be that this young CEO was trying to lead him astray …?
Then, he nodded as if he didn't fully understand, but digging by hand would definitely not work now. A few years was too long for the return on investment. A few decades would have been enough, but now, a few years had passed. There were too many variables.
"As for mechanical excavation, that's even simpler." Ye Qing smiled mysteriously and casually knocked on the table. "Mechanical vibrations cannot be eliminated, but if the machine doesn't rely on motors or diesel engines to work, there will naturally be no vibrations."
"Look, when I knock on the table, the table will vibrate. If I press on the table, the table will receive the same pressure, but there will be no vibrations. "
Lopez was at a loss.
"In layman's terms, it's changing the way the machine moves."
"Our company will launch a new product in two days, but this product will not have much market demand. So, Mr. Lopez, you have to help us share the sales volume. "
Lopez understood what he meant. After struggling out of the petrified state, the first thing he did was to run to the desk with joy and shake Ye Qing's hand non-stop. "Mr. Ye, don't worry. I'll definitely help you sell as many of these products as I can."
"Don't be excited. Our product is only targeted at urban areas where noise pollution is becoming more and more important. It's for construction teams to quietly work during the day."
Lopez kept promising that after he came to Hua Xia, he had a deep impression of the city's buildings that were changing with each passing day. He was planning to go back and get a construction team to build a residential area. This product could be considered a great help to him.
…
Two days later, Monster Heavy Industries released a new product in a low-key manner.
This new product was not sold in Hua Xia at all. Even the company's sales department did not know about it.
It was a small tunneling machine with a strange shape. There was a semicircular heavy metal cover behind the rotary excavator. Once the power was turned on, the heavy metal cover would slowly move in an irregular plane to completely transfer the vibrations generated by the rotary excavator.
The tunneling head of the tunneling machine was also very strange. It was not a traditional spiral blade. Instead, it had rows of steel brushes that brushed the soil at a uniform speed.
Ye Qing named it the "Super Silent Tunneling Machine" and came with a detailed construction manual on how to eliminate various vibrations.
For example, if it encountered a hard obstacle such as a rock, it could be destroyed through the most traditional method of burning the rock and pouring cold water on it. If it encountered a hard layer of soil, it could be wet with a water pipe first.
There was no manufacturer, nor was there a contact number.
This was the legendary "three unbranded" product, but it cost a million per unit, which was dozens of times more expensive than the small rotary excavators on the market.
Ye Qing watched the ten pieces of equipment being shipped away through the shipping channel that Lopez contacted. He smiled but did not say anything.
If this small tunneling machine was used to brush ordinary soil, it could dig a distance of hundreds of meters in a day. Even the dirt that was brushed down would be passed to the back of the equipment through the bucket below.
It was completely impossible to use vibration sensors to detect this kind of equipment.
Because the mechanical noise it produced was far lower than the natural noise in the natural environment.
For the time being, they had done everything they could. As for how much they could penetrate into the United States, it would depend on the ability of the Mexican businessmen. The more capable they were, the more Ye Qing would earn three times the points.
Since he was in a good mood, he naturally wanted to find something to do.
After returning from the company, Ye Qing sent Doudou a WeChat message and asked her if she could apply for leave.
If she could, he would take her to Asashima City for two days.
Well …
It was hard to say what Ye Qing's goal was, but Doudou knew it herself.
So after a while, she replied with a shy emoji. She said that she had just asked the director, and he agreed to give her two days off, but she had to record the show in advance.
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