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In addition to bringing a bag of salt, Yang Shuyong also brought him a stone slab.

The stone slab is about thirty cm long and thirty cm wide. The edges have been polished and are a square. It is brown and red in color, translucent, and the touch is a bit rough and the material is unknown.

Ao Muyang raised it and looked at it, asking, "What is this?"

"Salt board." Yang Shuyong smiled.

"Salt board? It's just salt bricks, right?" Ao Muyang asked in surprise.

Seeing Yang Shuyong nodding, he was even more surprised. He knew this thing, but how could Yang Shuyong get the salt bricks?

He asked, "Don't salt bricks come from natural rock salt ore? They seem to only form naturally, right? Can you dry salt bricks even if you dry salt?"

He got this information from a geographic TV program, and was not very sure, so he took out his phone and searched it again.

He remembers that the salt plates come from natural rock salt mines. This mineral deposit was formed 260 million years ago and distributed in some countries in Europe and Asia. Most of the salt bricks come from natural rock salt mines in Pakistan. An underground mine located 600 meters deep in the Himalayas, and has the largest and highest purity natural rock salt mine in the world.

Yang Shuyong said: "Who said that this salt plate was made by us drying salt? I haven't said that before?"

"Then how did you get it?" Ao Muyang wondered.

Yang Shuyong smiled and said, "I was engaged in the salt drying activity this time, but I hired an old expert in the salt industry to provide guidance. He gave me this salt board. He was once assigned by the state to provide guidance to the underground rock salt mine in Pakistan."

Ao Muyang looked through the salt brick and found that this thing was not very valuable, but it was indeed a rare thing. He looked at it over and over again and again and felt very interesting.

Seeing that he liked it, Yang Shuyong was happy and said, "This salt plate is a good thing. Experts gave it to me because I am committed to protecting the traditional crafts of the country. You have to preserve it well."

Ao Muyang said: "Then I can't accept it, this thing is too precious."

Yang Shuyong waved his hand and said, "There is nothing precious. It is as precious as our friendship. If you accept it, you must accept it. This thing will be good for you."

Ao Muyang subconsciously asked, "What are the benefits?"

Yang Shuyong pointed to the salt plate and said, "You usually lick it if you have nothing to do. The salt plate is rich in various minerals that can be absorbed by people. Eating this can strengthen the body, nourish yin and yang!"

"Oh!" Ao Muyang swears, this is really a bit of a bad taste.

After joking, Yang Shuyong became serious: "Salt plates are really good things. You know, the main component of salt bricks is crystal salt stone formed after the geological crust is extruded..."

Ao Muyang nodded: "I just found this."

Yang Shuyong said again: "Then you know that salt may dehydrate in a humid environment. Salt bricks can evaporate negative ions that are beneficial to the human body from this phenomenon. Do you know negative ions, right?"

Ao Muyang continued to nod. Now many media are introducing air negative ions, saying that they have the effects of calming, analgesic, coughing, relieving itching, diuretic, increasing appetite, lowering blood pressure, and can make people feel comfortable. It is simply a magical tool!

"Salt bricks continuously absorb water from the air and evaporate. During this repeated process, salt and water molecules are constantly mixed and dissolved and evaporated, and finally negative ions are generated. This process can only be produced by natural crystal salt ore. According to expert statistics, salt bricks can add 500,700 negative ions to each cubic centimeter of air, which can effectively improve the quality of indoor air."

Listening to Yang Shuyong's introduction, Ao Muyang was shocked: "Brother, have you been to college recently to study? This is not like what you are a rough person."

Yang Shuyong laughed and said, "This is not what I said, it is what I repeated, this is what the expert said."

Ao Muyang wondered: "Then you are genius, you can never forget it?"

Yang Shuyong shook his head: "How is it possible? I have memorized it for a long time before I remember these words."

Hearing him say this, Ao Muyang immediately understood what he meant. He asked vigilantly: "Do you have more than this salt brick in your hand? Are there many more?"

Yang Shuyong smiled and said, "How did you know?"

Ao Muyang rolled his eyes and said, "I not only know this, but also know that you plan to sell salt bricks to tourists, right?"

This guy will definitely take a lot of effort to memorize these words. If it cannot be used to make money, who would have memorized them like this by ordinary fishermen?

Yang Shuyong laughed and stopped talking.

Ao Muyang pointed at him and said, "Brother Yong, you are really flexible and you are good at developing peripheral businesses."

Yang Shuyong said: "This salt brick is indeed a good thing, and I am also trying to benefit the public. Experts have said that this is especially suitable for placing it next to computers, TVs and other electrical appliances. It can neutralize positive ions and shield the harmful radiation of electrical appliances. Your teacher Lu always works on computers, and I actually gave it to her."

Ao Muyang curled his lips and said, "You are really worried. It turns out that you are planning to do a micro-business business."

Yang Shuyong waved his hand and said, "What micro-business? Everyone said that this is my and my experts who promote this kind of salt plate to benefit the people, and to help our brothers in Pakistan develop their economy. This is a business that is in line with the interests of the country."

Ao Muyang doesn't comment much on this, but the business developed by Yang Shuyong is good.

Ao Muyang thinks this can really scare tourists. The salt plate is beautiful and has a series of magical effects. It is a natural negative ion volatile, which is much better than negative ion air purifier, negative ion hair dryer, and negative ion fan exchange.

In the evening, he put the salt board in front of the computer. Lu Zhizi saw it and asked, "What is this? A new mouse pad? Are you planning to play games? Why did you even get a mouse pad like this?"

Ao Muyang said: "What kind of mouse pad is? This is a salt plate, a salt brick, which can release negative ions and resist the radiation of electrical appliances."

Lu Zhizi smiled and said, "Then how do I do it when I go online? Holding this negative ion in my arms?"

She had no interest in this salt plate, but when the two little monkeys found it, their eyes were shining. They pounced on the salt bricks one by one, and then started licking happily.

Ao Muyang laughed and really made Yang Shuyong say it right, this thing can be eaten by licking.

He lay on the bed to check the introduction of salt bricks when he had nothing to do at night. He found that salt bricks are indeed highly praised online, but some experts scoffed at it, saying that from a chemical point of view, there is no such thing as "ion". Therefore, "oxygen ions" or "oxygen negative ions" are a pseudo-concept, and "air negative ions" are even more nonsense.

However, he found that salt bricks have a new function, that is, their texture is pure, unified in color, and durable, and can create jewelry.

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Chapter completed!