Learn about their progress from the Industrial City, Huo Gang left, I have to say, these craftsmen gave Huo Gang too many surprises, originally he wanted to see Sun Er, but later learned that Sun Er was not in the Industrial City, but went to the base of making refractory bricks, it is said that this guy really developed some new refractory bricks.

Huo Gang didn't bother him, it's not that Huo Gang is not responsible, but Sun Er and the others are used to finding the truth in examples, so they will take tests while studying, and Huo Gang will do these tests...... To be honest, he is not as good as Sun Er.

It's this knowledge, they asked Huo Gang maybe he knew, but if you let Huo Gang tell them systematically, forget it.

And Huo Gang doesn't have that time, Sun Er and they don't have that time, and by the time it comes this winter, most people should be able to rest, and then Huo Gang will have the opportunity to give them systematic lessons.

Huo Gang had already given Sun Er an order to them before, and now all the places that have been discovered where bricks and stones can be fired have begun to build brick factories, because a large number of bricks produced by brick factories will be used until winter.

And Yumen Pass was the first to start, on the way to Wanmin Road before, Huo Gang found that some new carriages had been quietly made by Lu Mu and them, maybe they thought that there was no need to tell Huo Gang about such things, they were all trivial things that were not worth mentioning.

But Huo Gang still called Yang Lao Wu over to learn about the new carriage.

"Chief, these new carriages are made by the Lu family according to the bearings you said before, the original bearings of the carriage have been replaced, and sheep grease has been added to them as lubrication, and the horizontal axis of the carriage is also made of stainless steel transverse axis, and the hub of the wheel is also directly forged from stainless steel, so that the load-bearing capacity of these carriages can be greatly improved."

"In addition, because we use bearings, the horses pull twice as much weight as before, and even less force than before, so we can now move very quickly. In addition, in order to prevent damage to the road surface, the Lumu family ordered a ring of wood on the periphery of the steel wheel as a buffer. ”

"Before, Lumu used hemp, animal leather, etc. as a buffer, but the effect was not good, and finally chose wood. In this case, it is easier to replace the wood after it is damaged. Yang Lao Wu introduced Huo Gang.

That's right, this is the carriage that Huo Gang saw, the wheels on both sides of the carriage have been replaced by steel wheels, but now the outermost circle of steel wheels is ordered to use a circle of wood as a tire.

Don't you say it...... Before there was rubber, this thing was really the best thing to do, wood tires...... Pretty good.

Especially when the wood of the tires is actually quite usable, and in the case of a cement road, the road surface is smooth enough, otherwise the carriage of this period is really enough to suffer.

"Well, in this case, you go back and talk to Lu Mu and them, you can add a shock absorber." Huo Gang thought for a while and said.

Now that they can make very good quality steel, the simplest way to absorb steel plates can also be made.

This thing is better than the current carriage directly acting on the bearing, and with the shock absorption, the comfort of the carriage is naturally a great improvement, and it can also effectively protect the goods on the carriage.

Of course, the comfort of plate suspension, or leaf spring reduction, is limited, but it is much better than direct contact between the carriage and the road.

Huo Gang told Yang Lao Wu about the leaf spring, this thing is simple, you can understand it as soon as you hear it, but Yang Lao Wu still recorded these things on the paper, and drew the general structure for Huo Gang to confirm before he put it away.

As for the rest, there is actually nothing to say, because this improved carriage is already very similar to the modern rural carriage that Huo Gang used when he was a child in his previous life.

In the past, because wooden wheels were used, for convenience, the wheels were very tall, and even almost half a person was so tall, so it was called a high car. But after the introduction of steel wheels, it is clear that the Lumu they have been tested, and the wheels have shrunk to about the normal size of later generations, and there is not much steel between the spokes.

These should have been tested by them, Huo Gang is really not worried about these aspects, the craftsmen of this era, that is really ingenious, everything has been carefully studied, not to mention, the current steel is much more valuable than the future generations, so they naturally how to save steel.

The most solid estimate of the materials used here is the horizontal axis, but now the height of this new carriage is much lower, but its carriage area has increased, and the goods that can be pulled by a carriage have increased by at least 50% compared to before.

This is naturally a great increase in their capacity, and most importantly, the durability of these carriages is naturally much more enhanced now! It is estimated that the wooden tires that need to be replaced the most.

However, this thing is also very simple to operate, just attach a special arc-shaped wooden strip to it. Of course, a wooden tire must not be a complete round wooden strip, Huo Gang took a general look, a circle is at least composed of six pieces of wood.

"The carriages in our territory are gradually being replaced with this new type of carriage, but chief, are we going to sell these carriages?" Yang Lao Wu looked at Huo Gang and asked.

"How?" Huo Gang looked at Yang Lao Wu.

"The shopkeeper Zheng Ning asked us before, and they wanted to buy this new type of carriage, because they kept sending us raw materials, and the parts of the carriage were lost a lot, and the wheels of a carriage were basically scrapped in a short time." Yang Lao Wu said.

"But because we haven't finished replacing them ourselves, we haven't promised them for the time being, but now at the production rate of our carriage factory in the industrial city, we can now make at least 10 carriages a day, and this rate can continue to increase." Yang Lao Wu said.

"So much?" Huo Gang was a little surprised.

"Yes, the main thing is that the new forging method allows us to produce the wheels, the bearings are very fast, but the wooden part on it is not enough, and our carpenters have important jobs. The newly trained workers who make assembly line carriages are still learning, but they are also fast, and it will take about another twenty days to usher in an explosive period. Yang Lao Wu said.

"Have you calculated the cost?" Huo Gang thought for a while and asked.

"1,000 yuan." Yang Lao Wu gave a cost, "This is the cost of steel, as well as our workers." ”

Huo Gang nodded, this cost is not high, but it is not low, of course, you have to see who you compare with, if Datang makes the same carriage, at least twenty times, it is estimated that it will be difficult. Steel alone could not have been extravagant enough to be used to make horse-drawn carriages.

But what about Datang's wooden carriage, it is basically this cost price, of course, Huo Gang felt that he had to triple the price, according to 3 times, it is estimated that the Li family in Longxi will still buy it. Because his own carriage is definitely much more durable than the three carriages of the Li family in Longxi.

The most important thing is that even if the steel parts are broken, they can use the steel to make something else. Moreover, if you buy the steel on this carriage at the price of 3 guan, it is estimated that Datang will be able to die of laughter!

This is not an exaggeration at all! Huo Gang felt that if he really sold them a large amount at this price, it was estimated that the Li family in Longxi would immediately buy it back and dismantle the carriage, and the steel would be melted and made something else.

If the price is too expensive, then it is estimated that there is no need, and people might as well use the original wooden carriage.

The most important thing is that their carriage has become powerful, which is also good for Huo Gang, because they will be able to transport supplies faster! Datang has a lot of resources, and Huo Gang is thinking about more than just getting food from Datang.

For example, soda ash, now soda ash is also very helpful to Huo Gang's territory, but industrial soda production is not very cost-effective for Huo Gang at present, the cost is too high, Huo Gang has a more convenient choice, that is, trona ore! There are a large number of trona mines in Datang.

And it's not just alkali, such as eucommia gum can also let Datang help with large-scale planting, although Huo Gang is cultivating faster here, but before there is no natural rubber, how much does this thing have, Huo Gang is not too little at all, okay?

In addition, such as salt, cloth, silk, etc., are all needed by Huo Gang, even if he is cheaper here, but it is impossible for all silk and so on to come to his place to produce, in addition, among these, Huo Gang is also ready to secretly buy some more special things, such as sulfur, saltpeter, charcoal Huo Gang can get it himself.

But there are a lot of sulfur and saltpeter in Datang, and Huo Gang is not saying that there are none, but since they can be bought from Datang, why do you want to toss them yourself? At least don't toss inside the end.

Speaking of which, it's all your fault, Li Er, you said that you are arrogant, hurry up and come to the border to meet you, brother doesn't want to fight with him, let's get on the same day, you go and destroy your Jieli, I'm here to develop my economy, isn't it good?

Huo Gang had some resentment, but Huo Gang didn't know that Li Ji, who had returned to Suoyang City, had secretly set off, and as for the place where Li Ji went, it was naturally Chang'an, not that Li Ji wanted to go back, but that Li Ji had to go back because of what Huo Gang had given him.

This is not a secret letter that can be reported, and Li Ji does not dare to pass the secret letter, although this news is already known to the Li family in Longxi, but the five surnames and seven wangs know whether Li Er knows about it, which is very important in itself!

This news can't be leaked, and Li Ji must go back to report it in person.