After the salamander incident, Chu Yun had to be prepared in terms of safety. God knows when the next wave of beasts will attack Liuhe Village again, even if this time it's man-made.

After taking Qingshi and the others to the field at the entrance of the village, and leading everyone to deal with the craters caused by the previous mine explosion, Chu Yun came to the spirit fruit tree.

At this time, just in time for the spirit fruit to ripen, Qingshi and the others carefully picked the spirit fruit that grew on the spirit fruit tree.

This batch of spirit fruits was about more than thirty catties, and after picking out nearly ten catties, Chu Yun put the remaining twenty catties of spirit fruits into the storage ring.

In addition to the spirit fruit, there are young and middle-aged people in Liuhe Village who go out every day to pick mountain goods and medicinal herbs. Not to mention the rest, ginseng alone can dig up an average of one a day. At this time, Chu Yun's storage ring had already stored seven wild ginsengs.

Seeing that it was getting late, Chu Yun returned to the wooden house, pressed the red button on his watch, and returned to the real world.

After eating a bowl of instant noodles in the rental house, Chu Yun turned on the computer and made some inquiries.

Early the next morning, Chu Yun drove his van towards the suburbs. An hour later, according to the address written down yesterday, a factory was found.

This is a brick factory, which Chu Yun found out at night last night. There are several brick factories in T City, but in terms of scale, this Hongguang brick factory is the largest.

The brick factory was not as strict as the previous firecracker factory, and Chu Yun entered the open space area in front of the factory without hindrance.

Stacks of red bricks are placed in the open space, and workers are constantly transporting truckloads of bricks to other places with small carts.

"What do you do?"

At this time, a middle-aged man in a white shirt and a small bag in his hand asked Chu Yun.

The middle-aged man is Sun Qian, the owner of the Hongguang Brick Factory, and today another batch of bricks will be shipped, so he will personally come here to supervise the work. It's just that I didn't expect to find a young man when I first came to the brick factory.

It stands to reason that there are only two kinds of people who enter the brick factory. One is to wholesale bricks, and the other is to work part-time to apply.

People in the brick industry can see at a glance that Sun Qian, a few wholesalers around, know each other. And if you want to say that you came to work, Chu Yun's clothes don't look like it, so she has this question.

"I wanted to buy some bricks."

Picking up a brick casually and looking at it, Chu Yun spoke.

"Oh? How much do you need? ”

Listening to Chu Yun's words, Sun Qian asked. It's just that he doesn't have any interest in his heart at this time.

The brick factory's business has been sluggish recently, and Sun Qian has been anxious to find a way to see if he can contact a few more big sellers.

And Chu Yun in front of him looked too young, Sun Qian didn't think he would have any purchasing power. It's just that with the mentality that mosquito legs are also meat, he will talk to Chu Yun.

"Let me do the math!"

Listening to Sun Qian's words, Chu Yun took out a tape measure and spoke.

Then Chu Yun walked to a place where the other party's bricks were made, and used a tape measure to measure it.

This time, Chu Yun came to the Hongguang Brick Factory to purchase a large number of bricks and bring them to the other world.

As a computer science student, Chu Yun's math will definitely not be bad. After a rough estimate, an approximate range was obtained.

What Chu Yun wanted to do was to build a city wall in Liuhe Village in the other world. Whether it's to prevent wild beasts from attacking a village or to guard against foreign enemies, having a wall can go a long way.

The cultivated land in Liuhe Village is very small, and most of the people live in the village. In this case, the length and width of the village are around 300 meters. However, for the sake of future development, Chu Yun set the length and width of the city wall at 500 meters.

The walls of the village are not necessarily very high, but they must be at least about three meters. In this way, people outside cannot see the situation inside the village, and there is a certain amount of privacy and security.

The length of the four walls is 2,000 meters, which is 6,000 square meters when multiplied by three meters high. Chu Yun was going to set up two city gates in the east and west directions of the village, plus a few steps to climb the city wall and spare materials, it would be calculated according to 10,000 square meters.

The thickness of the city wall was ready to be built according to sixty or seventy centimeters, and only in this way could it effectively resist the attacks of some wild beasts. This specification would be too wide for the real world, but it is necessary in the other world.

At this thickness, at least 300 bricks are required for one square meter. In this way, the number of bricks that Chu Yun needed was extremely huge.

"How do you sell bricks here?"

With the approximate quantity in hand, the next question is the price.

"Solid bricks are two cents and two, and hollow bricks are three cents and six. If the amount is large, it can be cheaper. ”

Although he knew in his heart that the young man in front of him was definitely not a big customer, with the attitude of doing business if he had a business, Sun Qian still gave an offer.

Listening to Sun Qian's offer, Chu Yun nodded. This price is not too expensive, it is similar to what he looked up on the Internet before.

Although the use of solid bricks is now prohibited in some places in the market, this is the border between urban and rural areas. Some houses in the countryside are still built of solid bricks, which is not a problem that can be solved by a ban.

Hollow bricks mainly have advantages in building buildings, and most of them are used on high-rise floors. The high-rise requires lightweight materials, coupled with good thermal insulation effect, and basically uses hollow bricks.

However, most of the general multi-storey buildings are still built of solid bricks due to their relatively long life. Although he is not majoring in architecture, Chu Yun knows a little about it.

As a material for building city walls, Chu Yun naturally does not need the functions of thermal insulation and noise reduction. Although the strength of solid bricks is not necessarily higher than that of hollow bricks, after the addition of reinforced concrete, the two are not much different.

"If there is a lot of solid bricks, how much is a piece?"

After having a number in his heart, Chu Yun asked again.

For quantities like the ones he wanted, a penny less per brick was a lot of money. In addition, there is more than just bricks to build the city wall, so it is necessary to save some points.

"Well, if you can buy 10,000 solid bricks at a time, I'll give you two cents a piece."

After a little consideration, Sun Qian made a final offer.

10,000 bricks, also a turnover of 2,000 yuan. Although it is not much, it is somewhat of an income. And this limit is not high, who can build a house in the countryside not tens of thousands of bricks!

Listening to Sun Qian's offer, Chu Yun nodded. Through the previous online query, he knew that the price was already very low.

"I want three million solid bricks, when will I finish it?"

Making up his mind in his heart, Chu Yun reported a number that stunned Sun Qian.