This Gao Xin neither invited Yang Yinuan to Bingtie City, nor did he plan to come to Yang Yinuan's Qianshan City.

is obviously defensive against Yang Yinuan, and Yang Yinuan also understands his thoughts.

Since the other party put the place of appointment in Huangcaotan, he was obviously afraid that Yang Yinuan would have any ideas.

Yang Yinuan didn't think too much, and directly agreed, so he brought people to this Seven Star Village.

At this time, the construction of Qixingzhai is also in full swing.

Four tall towers, the foundations have been laid, and they have been built up to three floors above ground.

These towers also innovatively adopt a new construction model, that is, steel and concrete structure.

Since Yang Yinuan brought back a few wire drawing machines this time, he was soon under the adjustment of Grande.

These wire drawing machines can produce finer steel bars, and Grande has already drummed out cement.

With these two strengths, this steel-concrete structure can be built naturally.

Of course, this is just a tentative construction, and the requirements for the strength of the building are not as high as those on the Blue Star.

The safety standard of the tower on the Blue Star is that it can withstand 500 kilograms of aerial bombs in the air.

The ground can withstand a cannon of 203 caliber, so if the concrete layer is not moved, it must be cast one meter thick, and a steel plate must be added in the middle.

And the steel mesh, that is even more scary in density.

And here, naturally, they don't need such high-strength walls.

Twenty centimeters of concrete is sufficient, so it's okay to use the thinnest rebar.

And because of the lack of materials, the interior of the tower also has to use a lot of brick and concrete structure.

Although the strength, compared to the air defense tower on the Blue Star, it is a world of difference.

But on this planet, which is still far away from thermal weapons, this kind of 20-centimeter concrete building is already an anti-heaven existence.

This kind of concrete, after being cast, is dried and cured for 20 days, and its strength is definitely stronger than that of the local earthen walls.

Because the concrete itself has the characteristics of getting harder and harder the more it is used, not to mention that Grande also added some local unique dolomite powder to this concrete.

This kind of dolomite powder is the lime collected by the workers on the other side of Qianshan City when they were just in the mountains.

This thing, mixed with cement, will greatly increase the strength of concrete.

So don't look at it, the concrete walls of this tower are only 20 centimeters thick, but you have to talk about strength.

It's definitely much stronger than the local brick walls.

What's more, Grande also made a two-layer protection design, that is, inside the concrete, he asked people to build a layer of red brick walls twenty centimeters thick.

On the one hand, it is to keep warm from the cold, and on the other hand, it is to give strength to the concrete wall.

With this layer of red brick walls, the thickness of the tower's walls can reach forty centimeters.

Considering that the interior wall will be scraped with a layer of cement in the future, the thickness may be 423 centimeters thick.

Such a wall, in this day and age, is not a problem even if it encounters a heavy trebuchet.

Now the four towers have been built to three stories high, and according to the design, these four towers will be built more than a dozen stories high.

Before the winter of this year, the four buildings will be topped out and completed.

At the same time, construction is also underway in the middle of the four buildings.

First, roads were built, using gridded roads to divide the urban area.

Each functional zone is then built in its own different functional areas.

Moreover, some underground projects should also be constructed in advance, such as water supply and drainage, which must be arranged under the road surface first.

These have to be done in advance......

If this were purely dependent on the workers of this world, then all this trenching work might be enough for these workers to do it for a few months.

But since Yang Yinuan brought back the excavator from the modern world, the work of digging a trench is not too easy.

Every day Grande would drive a trench and make several circles around the construction site.

After a few laps, the basic roadbed will be dug and the pipeline will be arranged, and the backfill can be backfilled, and then the construction on the ground will be started.

And on the side of Qianshan City, there is still a steady stream of convoys driving over every day.

The newly burned red bricks from yesterday were transported, and now the brick factories in Qianshan City have opened three.

The three brick factories burned bricks day and night, even with the brick-making machine brought back by Yang Yinuan.

But the three brick factories are still busy with continuous rotation, and the orders cannot be produced at all.

It can be seen that in this world, the demand for red bricks is in short supply!

Out of the red bricks, as well as all kinds of straight wood, as well as all kinds of boards, will also be transported from the lumber mill in Qianshan City, a steady stream.

This is thanks to the world, which is blessed with unique timber resources.

For example, the Iron Mountain in the area of their Thousand Mountains City, this mountain that stretches for thousands of miles.

Everywhere there are towering trees that go straight to the sky and are dozens of meters high.

Even hundreds of meters high, there are countless of them.

These are unexplored treasures that have been left over for thousands of years.

Naturally, Yang Yinuan will not overexploit it, and he will ask the workers to cut down trees at fixed points.

And after the felling, people will be replanting a batch of trees in that area.

To his surprise, the world seemed to be perfect for the growth of trees.

Trees that used to take hundreds of years to grow on the blue star seem to take only ten or twenty years to grow here.

So when he replanted, he only needed to ask people to find some small saplings in the mountains and forests and transplant them.

And there are a lot of trees here, all of which are very valuable species.

For example, the oak tree, this kind of tree, in the Age of Blue Star Discovery, was a first-class shipbuilding special shipbuilding.

Tall and straight, it is also very hard, corrosion-resistant, and resistant to insects and ants, and it can be said that it is the best material for shipbuilding.

It's even the national tree of Miniu Country!

But here, this kind of oak tree can be seen everywhere, and it is more than 100 meters high, and more than 200 meters high.

There are also red pines that are 70 or 80 meters high, maples and birches that are 100 meters high, and so on.

It's really everywhere here, if it weren't for the fact that Yang Yinuan wouldn't want to enter the furniture industry now.

With this timber, he can make a lot of money when he goes back.

After the busy day, Yang Yinuan called a few henchmen to a simple meeting.

After taking a look at the current development of Qianshan City and Qixingzhai.

"In the future, if the Seven Star Village is built, then it will be troublesome for you to come to the town."

"Yuanqing is responsible for the development of Qianshan City......"

Yang Yinuan said his arrangement, and Yang Yuanqing and Grande's orders to him were naturally obedience-oriented.

And they also know that in this arrangement, Yang Yinuan naturally has a purpose.

This Qixingzhai can be said to be the southern gate of Qianshan City, and it is natural to put a trustworthy person here.