Datang: Time travel in two months, wait online, hurry up!

It's just that copper was used to make gun barrels before, but later because copper was too expensive, it was replaced by iron cast guns.

But Li Ke directly skipped copper and iron, and used alloy steel to cast cannons!

The quality of the cannon cast in this way will be higher, not only safer during use, but also have a longer service life!

After all, although copper cannon has excellent ductility, its strength is still not as good as alloy steel.

As for iron, it goes without saying that the service life is too short.

Li Ke never thought about it.

"Separate some craftsmen to study seamless steel pipes, and leave some to study cannons!"

Li Ke then arranged for the craftsmen of the steel workshop.

"cannon?"

The craftsmen couldn't help being a little puzzled when they heard this strange word.

What is a cannon?

"Cannon, you can think of it as an enlarged steel pipe!"

"It's just that the barrel of the cannon can be directly cast."

Li Ke then explained to them the characteristics of the cannon and the barrel.

"Prepare a large amount of wax first, and then make the wax into the shape of the gun barrel. The length, size and thickness should be the same as the gun barrel."

"After the wax model is made, the wax model is wrapped with clay, and the inside is also filled with sand, leaving only the feed port at the end of the barrel."

"Then heat it to melt the wax inside the clay mold and flow out, so that you get a cavity in the shape of a gun barrel."

"Afterwards, pour molten alloy steel into the cavity of the clay mold, wait for it to cool naturally, knock off the outer clay mold, and you will get a semi-finished gun barrel!"

Li Ke quickly explained the theories and principles of the lost wax method and clay molds to the craftsmen.

The principle is actually very simple, but the actual operation of the lost-wax method and mud casting gun barrel is still much simpler than that of seamless steel pipe.

Sure enough, after the craftsmen listened to it, they knew it right away.

"Your Highness, we are confident that we can make the barrel you need!"

The craftsmen quickly assured Li Ke confidently.

This principle and operation are not difficult, especially for old craftsmen with outstanding craftsmanship like them, it is even more trivial.

You only need to follow what Li Ke said, and it is estimated that it will be done after a few experiments.

"Then I will be waiting for your good news."

Li Ke smiled, and he was also very confident that the craftsmen could cast the cannon.

After all, the core material problems have been solved, and casting cannons is no longer difficult.

Immediately, Li Ke gave them the blueprint of the gun barrel on the spot, and explained some specific data, and then left.

Although I know the method, it still takes some time to prepare for the actual casting.

Li Ke returned to the Metropolitan Governor's Mansion, once again spent his days dealing with things, and then enjoyed massages from two pretty secretaries, Xie Wan'er and Wu Meiniang.

Time flies, and soon it will be time for the first batch of purchases by major agents.

On this day, Yangzhou City was very lively, and donkey carts drove towards various workshops.

There was a look of urgency on everyone's face, obviously because they were afraid that they would not be able to get the goods if they went late.

All the shopkeepers came to the workshops in person, and they attached great importance to this first purchase.

As for this matter, Li Ke didn't pay much attention to it.

For the purchase of goods, all the shopkeepers need to communicate with the person in charge of the workshop.

Anyway, the wholesale prices of various commodities have been negotiated before, and they are all written into the agency agreement.

Due to the limited quantity of the first batch of goods, many shopkeepers have relations with the masters of the workshops, and even send money.

I want the master to allocate more goods to himself.

But all of them were strictly rejected by the owner of the workshop.

Because it is not up to them to decide how much goods to distribute, but to the agency right.

The markets in the four largest states are larger, so more sources are allocated.

Li Ke has already asked people to arrange how much goods are distributed in each state.

And it will be recorded in detail that the master of the workshop has absolutely no room for manipulation.

It can only be distributed according to the plan set by Li Ke.

Seeing that there was no other way, those shopkeepers had no choice but to leave the workshop with their share of goods.

Then it was transported to the state capital where the proxy was previously obtained.

Fortunately, they didn't wait for this period of time, and started to prepare the sales and transportation channels for the place where the agency was located as soon as they won the agency.

Now that the goods are in hand, they will start shipping immediately.

And the treasurer who has won the agency rights in Yangzhou and Suzhou is to save the step of transportation.

They directly distributed the goods pulled from the workshop to various shops, and then they were ready to sell.

"I don't know how effective the advertisement is?"

Shopkeeper Chen, who won the agency right in Yangzhou, felt a little uneasy.

He placed an advertisement in Datang Daily!

Yes, the first advertisement of Datang Daily is from Yangzhou Shopkeeper Chen!

Li Ke specially asked shopkeeper Chen to be called to the governor's mansion before, and told him about the advertisement.

A few days ago, the Metropolitan Governor's Mansion.

"Chen shopkeeper, what you have won is the agency right in Yangzhou, as long as the goods are received, they can be sold immediately."

"But if you want the common people to know that only you have goods for sale, you still have to promote them."

Li Ke sat on the main seat and said to shopkeeper Chen.

"Your Highness, the villain is also worried about this problem, so I can only rely on time to spread the news."

Shopkeeper Chen is also thinking about this matter. In the past, everyone sold them, but now he is the only one in Yangzhou who can sell these products!

And it's on sale right now!

But how to let the common people know about it as quickly as possible?

"You should read Datang Daily every day, right?"

Li Ke glanced at him and asked with a slight smile.

"His Royal Highness, I read the Datang Daily every day, and have subscribed to the newspaper for a year!"

Shopkeeper Chen didn't know what Li Ke meant, so he immediately stated that he was a loyal reader of Datang Daily and subscribed directly for a year!

"Then what do you think of Datang Daily's dissemination of information?"

"If you publish the news in the newspaper that only shopkeeper Chen's store in Yangzhou sells products, do you think it will solve your worries?"

Li Ke smiled and explained the concept of advertising to him.

"Publish this news in Datang Daily?"

Shopkeeper Chen suddenly opened his eyes wide, with shock written all over his face.

He never thought that such an operation could be performed!

But his eyes soon showed excitement, and the whole person became excited!

Because with his vision of doing business for many years, he naturally quickly saw the possible effects of advertising on Datang Daily!

With Datang Daily's influence in Yangzhou, it must be within a day, and everyone will know that only shops under his shopkeeper Chen's name in Yangzhou will sell those products!

And you will also know when products will go on sale!

In this way, he will save a lot of time and energy to explain to everyone!

Moreover, it can bring him a large number of customers in a short period of time!

"Your Highness, the villain wants to publish this news in the Datang Daily, what are the conditions?"

Shopkeeper Chen calmed down after being ecstatic, and he asked Li Ke expectantly.

Since Li Ke asked him to talk about this matter, he would definitely not let him advertise in Datang Daily for free.

There must be some conditions.

"It depends on what kind of position you need. If it's the headline on the front page, the price is 1 per day!"

"If you only need a small layout, the price is much cheaper, maybe 2 or 3 times a day."

Li Ke thought for a while, and then gave a price.

At present, the circulation of Datang Daily is not very large, so the advertising price cannot be set too high.

When Datang Daily truly becomes a nationwide newspaper in the future, the advertising price will be sky-high!

"One time a day?"

Shopkeeper Chen was also slightly surprised when he heard the price.

1 is not a small number.

But this is the price of the headlines on the front page, and he feels that Li Ke didn't seem to ask the price randomly, which is very reasonable.

As for the other small layouts, although they are cheaper, they are certainly not so conspicuous, and the publicity effect will be even worse.

Although 1 Guan is expensive, it is the headline on the front page, and the font is much larger!

It can be said that it is the most conspicuous place in the entire newspaper, and the publicity effect must be very good!

"Your Highness, the villain wants to buy the headlines of the day!"

Shopkeeper Chen gritted his teeth and made a decision in his heart.

He is a decisive and courageous person, otherwise, he would not have finally called out a high price of 12 yuan in the agency auction to buy the agency in Yangzhou.

He thinks that the headlines on the front page are worth the money, and the effect is very good, so he is willing to buy it!

"Okay, shopkeeper Chen asked someone to write a promotional manuscript and send it to the Metropolitan Governor's Mansion."

"At that time, my king will have someone publish it for you in time."

Li Ke nodded with a smile, and said to Shopkeeper Chen.

He is still in a good mood, although it's just consistent, it's nothing to him.

But after all, this is the first real advertisement since the release of Datang Daily!

He had also advertised before, but they were all promoting his own products.

But now, other people spend real money to advertise in Datang Daily, which has a different meaning!

And, it means a start.

Once there is the first person who advertises in Datang Daily, there will be a second, a third, and a fourth soon

Datang Daily's advertising revenue will also go from zero to a very impressive figure!

And as the circulation of newspapers increases and the number of people who advertise increases, the price of advertising space will also increase.

After all, newspapers still have to focus on news, and advertisements can only occupy a small amount of space, so the number of advertisements that can be published every day is limited.

And once there are too many people who want to advertise, they will naturally have to queue up.

Do you want to jump to the front of the queue?

Yes, you have to pay more!

Once everyone rolls up, then Datang Daily's income from advertising will be very considerable.

"Although newspapers are mainly used for public opinion, they must make money if they want to make money!"

Li Ke smiled and said secretly in his heart.

Time goes back to the day of purchase.