Of course, these are not the issues that Lu Yu is most concerned about, what he is most concerned about is the issue of promotion.

He wasn't a good merchant, even if he made a 'monster' like the Flower Caravan.

So there are many things that he still needs to learn from.

Promotions included.

He thought about how in his previous life, such a thing as a car was promoted.

So once again, I applauded my 'design'.

That's right!

How can a revolutionary thing be recognized and accepted by everyone in the fastest, most comprehensive, and expensive period at the beginning?

War!

The tank that Lu Yu made was very large, and although the white iron was cheap, the handwork was not cheap.

If you let those who can refine the weapon to make it, it will be more expensive to work and it will be very time-consuming.

This can be extremely expensive.

Where is it used? Or to whom? No, more precisely, who will buy it, who can afford it?

Army!

The money of the state is best earned.

Lu Yu in his previous life thought deeply of this.

Ten special breeds of fine war horses are extremely expensive, so it is really expensive to form a cavalry brigade, and the 100,000 cavalry of the Great Jade Country are like a bottomless pit every year, making the lord of the country endure tears to burn money.

In the absence of war, ten special war horses, including feed, including special care, including shelter, including training...... All the costs are added up, and you need ten hedrons a year!

It doesn't seem like much, but it's really sky-high, ten spars are enough for a hundred families to live beautifully for a year.

This means that a special war horse, or 'war beast', needs ten families to support, and it has to be a good family.

And Lu Yu preliminarily calculated, if he simplified the tank a little, as long as he practiced for a few months, those refiners could make one within a month, and after deducting the cost of raw materials, they would be given five spars...... They're going to be happy, really happy.

Sell another twenty hedron to the army, which should be within the range that the army can bear.

There is hope!

Lu Yu's tank manufacturing has come to an end, and except for some small parts that need to be adjusted for the transmission system, it has taken shape as a whole.

At this time, he also drew the drawings, a full 30 pages of paper, each page has a number of parts with strict specifications, assembled together at least semi-finished products.

At the same time, a promotion plan, or 'consumer targeting', is also in place.

Then there are only two things that need to be done.

First, make a name for yourself.

Second, first treat it as a luxury product, sell a few, and make a good profit!

A tank built by Lu Yu himself was finally done, and the method of controlling things hung in the air, letting it start, Lu Yu debugged the performance and found this thing...... It really made him a little speechless.

It's as if everything in the previous life, as soon as it touches the aura of this world, it will undergo some changes, it will become more ferocious and more speechless.

Its performance ...... It's too strong!

White iron is the base, and the dark iron is the spring, even if you fall on the hard ground from a high altitude, I am afraid that it will not fall apart!

If you step on the accelerator to the end, the tank will not immediately move forward, but ...... It's like an excavator that instantly cuts through all the rocky ground and plunges headlong into the ground!

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Very few things can withstand its force, and it's really too heavy.

Lu Yu could imagine that if it walked over the fragile official road, he was afraid that the ground would become full of holes.

But...... How can this be?

There is an old saying that there is no road, but when there are more people walking, it becomes a road.

It's stepped on, it's pressed, and then it becomes hard, it doesn't grow weeds, it becomes flat, it's ...... It's the road.

A tank, once passed, it was full of holes, if you keep walking...... That ground will become a ditch, a flat and hard ditch!

Wouldn't that be better?

Lu Yu pursed his lips, turned his fallacies into 'righteous paths', and then sent the tank into his space bracelet.

At the same time, his ideas continued to spread.

Because of the tank, he thought of the greatest symbol of the tank...... Artillery!

Of course, this tank has no artillery, just an armored vehicle that looks like a huge tank.

But artillery ...... In fact, it is easier to be made by Lu Yu.

Like the three 'grenades' he had spent three years making, no, they shouldn't be called grenades, not a thing.

The previous name acquisition was not too good, it was really a bit like ...... Stars!

In fact, it is gunpowder plus aura, plus extremely complex formations and mechanisms, condensing the huge design project into a small 'ball'.

The power it can burst out of is terrifying.

Even those devastating weapons in the previous life were not as amazing as the one made by Lu Yu.

And thinking of artillery, Lu Yu suddenly realized that he could actually make an artillery, at least ...... It's nice to put on your body, it's fun, and it's a weapon.

Nodding, Lu Yu walked out of the workshop, just in time to see the old man sitting bored outside, so he said, "Get me more white iron, well, the more the merrier." ”

The old man was stunned, he didn't know what Lu Yu was going to do, he asked for a lot before, and almost used all the inventory in Tian Guo, after all, few people would keep this thing of white iron, so it was useless.

He opened his mouth to ask the reason, but as soon as the words were about to come out, he held back and only said, "Okay, Master Hou." ”

So he prepared to go out and order someone to buy it.

"Well, the sooner the better," Lu Yu nodded and said, then suddenly remembered something and asked, "By the way, how are you taking care of my small garden?"

The old man was stunned again, and suddenly remembered that before Lu Yu left Tian Guo, he did personally get a small piece of garden for him to take special care of, so he hurriedly said: "I have been taking care of it very well, there are more than a dozen farmers who take care of it on a daily basis, and there is also a seventh-order martial artist who takes care of it daily, and now it has been harvested three times, but that thing is ...... What the hell is it?"

The corners of Lu Yu's eyes twitched a few times, good guy, it's just half an acre of field, and so many people are taken care of it, what is this for? Isn't it possible to wipe every leaf clean every day?

In fact...... Not only do the leaves have to be rubbed, but even if there is an extra clod on the ground that is larger than the belly of a little finger, they will be pinched into powder in time and sprinkled back......

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