Outside the Fire Bull City, Han Jian and the crocodile were studying the weapon spectrum sent by Li Chengzhou, and the crocodile didn't care about it at first, but with the in-depth understanding of the weapon spectrum, the crocodile felt more and more that this weapon spectrum was extremely exquisite.

Turning iron ingots into real weapons, such weapons can be said to be invincible on the battlefield.

Iron ingots can also be combined with other fabrics to make hard armor, which is of better quality than the armor worn by soldiers today.

The two of them grinded hard bubbles, and asked Chen Jiao, who was in charge of Fire Bull City, for more people, but Chen Jiao couldn't withstand soft grinding and hard bubbles, plus Han Jian was the same brother, so he gave a thousand people, as well as a few beginner craftsmen.

Han Jian concocted the same method, and personally went to the brothers in the other three cities, telling about the benefits that iron ore can bring, and the current progress, as long as there are enough people, you can find a way to mass-produce, you can install the whole army, and you can directly improve the combat effectiveness of the army.

Some cities resolutely do not provide it, because their own cities themselves are backward in construction, require a lot of manpower, have to open up wasteland for farming, and send people to build new cities, and there is not much labor left.

Han Jian can't help it, it is true that labor is scarce now, but the mining of iron ore is equally important, and a thousand people say more and more, and less and less.

One thousand people were divided into one hundred groups, two hundred mined ore, two hundred cut down trees for fuel, four hundred took turns to guard the shaft furnace to add wood, and the remaining two hundred people were led by craftsmen to repeatedly train rough iron into fine iron.

Han Jian was a little weak when he drew cakes for these junior brothers, because he and the crocodile had not yet thoroughly studied the weapon spectrum, and how to forge refined iron into weapons and armor were still being studied.

But Han Jian believes that it is only a matter of time, and it will definitely be solved after a while.

Han Jian couldn't convince the senior brothers in other cities, so he could only go to his own teacher, and when he set off, he also brought the Mo knife that failed to be forged.

Fang Changge was napping in the room, and Meng Biao pulled him to talk all night last night, which caused him to not be in a very good state today.

Hearing Han Jian's request to see him, Fang Changge tidied up his clothes and took Han Jian to the living room.

"Teacher, this is a new weapon researched by the apprentice and the crocodile, you can see it."

Han Jian respectfully handed the failed weapon to Fang Changge.

Fang Changge picked up the long knife and looked at it carefully, the blade was slender and the blade was sharp, but the fly in the ointment was that the connections of the various parts were a little loose.

But it is not difficult to see that this knife is indeed excellent, at least in terms of material, it is already capable of hanging weapons that are now in service.

"It's a long knife, it's a failure, isn't it?"

Han Jian scratched his head: "It's indeed a failure, but I'm researching, and I'll definitely be able to study it thoroughly in time!" ”

"So what are you looking for me for? To give you more people? ”

"Yes, teacher, I think we should prepare early, and when the day of the actual research is completed, we can directly put it into mass production."

"How many do you have now?"

"More than a thousand."

"Apprentice, I think more than a thousand people are completely enough, first forge fine iron and wait for backup, you and the crocodile two people with skilled craftsmen to study how to forge fine iron into steel, and study the weapons and equipment on the weapon book."

"When you have researched half of the weapons and equipment in this book, it will not be too late for us to start construction, now is indeed the time when people are needed everywhere, but the teacher promises you, as long as you can eat half of this book, I will definitely fully support it!"

Han Jian returned to the iron ore area lonely, and when the crocodile saw him like this, he knew that he should have hit a wall.

"Hey, what's wrong with bro? Didn't Fang Lao agree either? ”

After many days of getting along, the relationship between the two has become familiar.

"Yes, the teacher asked us to study first, at least half of it, and he also said that a thousand people are enough."

"It's okay, let's study it together, isn't this Mo knife already about to be studied, you brothers work together, you will definitely be able to study this book to the bottom, not to mention half of it, we will understand the whole book and show them it, every weapon and every armor in this book, we will make one by one!"

"Good! When the time comes, it will shock them all! ”

The two grizzled men re-entered the blacksmith's room, raised their hammers of fine iron, and began to clang.

They struck iron and argued together, just hoping to equip the whole army with such standard weapons.

The city built by Li Chengzhou with his own people has already laid the foundation and has its first prototype.

On the other side, Fan Qingyan was still worried about the foundation, and the more he dug down, the bigger and bigger the stones, and even dug out the stones that needed to be lifted by two people.

He was very distressed, why was this happening? If the construction continues at this rate, the other two cities are almost built, and I am afraid that I will dig the foundation!

Fan Qingyan was furious, and thrust the tool in his hand into the ground, making a piercing sound of metal colliding.

Fan Qingyan is like a balloon that has been deflated, listening to the sound just now, it should be another hard stone.

He picked up the tool and found that the tool had signs of curling the blade because of the force he had just inserted!

What kind of stone is this? Fan Qingyan used tools to dig open the soil layer underground, and found that there was a copper mine under the ground full of stones! Looking at the fineness of this piece of copper ore, the quality of this copper mining area is not low.

There is a large area of such gravel land around here, and Fan Qingyan judged that there should be a large area of copper ore under such a large area.

Fan Qingyan changed from anger to joy, if such a large piece of copper ore is refined, then the currency of Datang can be put on the agenda.

Before, the head of the house said that he should put the monetary system on the agenda as soon as possible, build markets, trade freely, and pay craftsmen and people, so as to stimulate enthusiasm.

Li Chengzhou asked his men to dig up the soil underground, to see if there was really a copper mine underneath, and if he had dug up the copper mine here, it should be similar in other places.

There is constant good news, good news from craftsmen who have excavated copper ore underneath.

Fan Qingyan hurriedly sent someone to report the matter to the head of the house, while the others laboriously continued to dig this copper mine to see how big it was.

The next day, the people who went to report came back, but Fang Changge did not come with him.

Fan Qingyan asked what was going on, and the man who went to report the news replied.

"Taifu replied, there are not enough manpower, don't develop this copper mine for the time being, Taifu asked you to bypass this copper mine, rebuild the city next to it, and then develop this copper mine after the city is completed."

"Taifu has already thought of a name for this city - Bronze City."

Fan Qingyan returned to a state of resentment, and the work of the past few days can be said to have been completely wasted.