Not many people went to inquire about it overnight, they didn't believe it, and it wasn't that no one tried to inquire about it, but what?

Those people never came back.

Although Li Hang is not a murderous person, those who probe the secrets inside are basically sent to the coal mines to dig coal, and live in the dark all day long.

God knows how long they'll survive in that environment.

As for the impact of this event...... Hehe, the people who came to steal the technology disappeared, which is also a very common thing in later generations.

Li Hang didn't care about this.

"Actually, I'm not the only one doing this kind of thing, but Your Majesty, who will help me get rid of all the people who spy on my workshop. As for the artifacts in the workshop, you should be able to see them tomorrow. Li Hang laughed after speaking.

After the last time I experimented with that artillery, I gave a message to this attack and defense and made an earthen gun.

This kind of earthen gun is mainly made of steel pipes, but because there is no way to make seamless steel pipes now, Li Hang still vigorously explained that they made them into thick-walled ones, and the outer side used a wooden butt.

As for the rear ignition excitation device, of course, it is the flint used.

This flint can also be installed on top of an iron sheet to block the wind and rain, so that it can retain a little combat effectiveness on rainy days, and it is precisely because of this design that more production of steel is necessary.

And Li Hang still has a big question.

That is, whether they can make a round spherical projectile.

Now only the casting process can be used, so for the time being, if there is no way to turn out the rifling before the lathe is made, there is actually no difference between a round projectile and a conical projectile.

And this kind of firearm, bulky will also bring a lot of trouble.

The next day, when this group of people saw the stuff hardening, they were dumbfounded.

"Is this the same soft stuff from yesterday?" Yesterday those things were a bit like a half-dried paste, a bit like a bowl of thick porridge, but now that they look at it, the ground is like a stone at this time, which really makes them feel a little strange.

And there are still the words they wrote yesterday on the stone on the side, whether it is the position or the way it has not changed at all, it is almost impossible to say that Li Hang is fake, not to mention that they let two of their subordinates guard here yesterday.

This thing is real.

Yesterday's powder-like thing, after being mixed in proportion, looked like mud, and after it dried up, it had such a hardness.

"This kind of hardness is not worse than those bluestone bricks, and this kind of thing is much cheaper than bluestone bricks, do you have any ideas?"

Idea?

This kind of thing can definitely be used as the main material for road construction, think about the current stone brick pavement, if this kind of thing is really cheaper than stone bricks, then every corner of the city can be paved with this in the future.

"This thing ......"

"If you join the business alliance, we can sell this thing to you, and you can make this kind of pavement according to the recipe, although it may not be possible to cover every corner of every village with this cement pavement, but the official road between the city and the city, and your home at this time, you can use this kind of thing to lay on the ground, which can not only make the home more beautiful, but also save a lot of trouble, and more importantly, such a ground will not be affected by muddy water on rainy days, Even if a torrential rain causes a flash flood, as long as it does not wash away its foundations, there will be no problem, as long as the muddy water is swept away, the concrete road can be removed. ”

Li Hang demonstrated it as he spoke.

As he spoke, he poured some muddy water on it, and then flushed it with water, and the muddy water fell into the canals on both sides. "This pavement is slightly designed, the middle is slightly raised, and the canals on both sides can get rid of all the cleaning water, this pavement can guarantee that it will not break for at least a few decades, as long as it is well made, this kind of thing can be used to spread it all over, plus the steel bars I produce here. This kind of road can withstand the running of four or five carriages at the same time, not to mention the fact that it is impossible for a carriage to pull many things in this year. ”

How much can a carriage carry in these years? I'm afraid that one ton is the limit.

Without extremely heavy vehicles, this kind of concrete road can last longer, and in this era, this kind of concrete road will be unprecedented in terms of transportation efficiency.

"That means that our support for the border and some surrounding areas in the future will be extremely rapid, and we will be able to send things out quickly, right?"

Li Hang was a little proud, but Zhou Zhan was a little hesitant. "Li Shangzao, you can't help but think too well, think about it, we can indeed send things quickly through this road, but in fact? What if these places are used by the other side? ”

As soon as he said this, the whole group of people immediately came to their senses. "That's right! What if it's being used by someone else? ”

These people looked confused.

That's the kind of thing......

In fact, Li Hang can be regarded as having understood this kind of thing.

Just like when Iron Ambition was played in the past, in World War II-themed games, the infrastructure construction in East Asia is a piece of, but the pace of advance in the same places is also much slower. On the other hand, in Europe in 193X, the infrastructure construction was countless times better, and all kinds of advances were stress-free and extremely fast.

But this is not an excuse, not to mention that once the transportation capacity is up, there will be more soldiers hoarded at the border gates.

"The problem is not very big, this kind of thing is originally a double-edged sword, not to mention that the nomads in the north are mostly cavalry, if their kind of war horses without horseshoes have this kind of cement road, the wear and tear of their war horses' hooves will be multiplied." Li Hang didn't care about this. Anyway, if you have enough horseshoes in your hands, you can arm all the cavalry of the Great Win Dynasty for the New Year.

You can do whatever you want.

After the construction of this kind of road, this kind of transportation will be much more convenient.

"After the construction of the road between us and the border is completed, you can sell enough mutton and canned beef, and you can also buy some milk and goat's milk powder." Li Hang said and took out some samples.

This is all brought by the border pass, canned beef and mutton was sent last time, but your cow and goat milk is an experimental product, the production process of this goat milk and milk powder is relatively simple, but the props are a bit complicated, for which you need to make two special ways to heat the air.

After all, 40° winds are not so easy to control.