Qianwei County, Minthouse.

Ma Tan was ordered to inspect here, and now Dahan has set up a number of minting centers, Yizhou currently has three, two are the original minting bases, and one new one is in Zhuti County, Jianning County.

The minting base of Zhuti County is a sub-base at the county level, and copper coins are minted to the vast southern and central regions...... Only by circulating money and letting the people of South China know the concept of money can we accelerate civilization and integrate with mainstream culture and values.

A lot of technological innovation is really just a small mistake or a coincidence.

The relatively mature steel frying method of the two Han Dynasty has been able to meet the needs of ordnance production, but it is somewhat deficient in agricultural tools. The shortage of agricultural tools is too large, and the base number goes up, and the loss will follow.

In order to create more durable, low-cost, and high-yield agricultural tools, the three official workshops in Yizhou also began to study the steel pouring method of the Danyang workshop.

The steel pouring method is just a name, and the same technology has different names, such as the steel filling method and the dipping steel method, which are all different names for the same technology.

How to call it how the image is, craftsmen don't pay attention to so many flashy things.

Consider it according to the name...... It is also reasonable to study roughly the same method of pouring steel.

Ma Jian is observing the demonstration of the new technology, and Pu Yuan is full of confidence, telling the key to technological innovation: "Wrought iron is soft and tough, pig iron is brittle and hard, and the melting point is low, and it is easy to smelt into molten iron. Nanyang iron nails are forged with wrought iron, and then dipped in molten pig iron to stir, so rigid and soft, beautiful and cheap. ”

It's just that Ma Tan's mind doesn't belong, and he looks thoughtful, nodding his head constantly, as if he understands.

Ma Tan's eyes wandered from time to time, looking at the busy craftsmen in front of the iron-smelting furnace...... With no focus in their eyes, these craftsmen are using the fresh and tender green bamboo with the thickness of their index fingers to clamp the dense wrought iron needles, like a comb, gently stirring on the surface of the molten pig iron, and lifting the green bamboo clips back and forth three times.

Then some people use a magnet to fish out these salted water quenched needles, and then put them into the heating furnace to burn red, and finally these red needles fall into the white ash baked at high temperature, and will slowly cool down with the white ash.

A steel needle in good condition can be more popular with the people and mountain people than one or five straight hundred coins.

With Tian Xin's tossing, various quenching, tempering, annealing, and normalizing techniques are being explored in the experiments of many craftsmen.

Knowing that it is true and not knowing why, some craftsmen even quench multiple times and temper repeatedly in order to create divine weapons...... The process is complicated; Workshops such as the manufacture of agricultural tools are concerned about efficiency.

After Ma Tan's inspection was completed, Pu Yuan packed many samples of equipment prepared by him, and Ma Jian would bring these samples back to Chengdu for Zhuge Liang to inspect himself.

Qianwei and Zhuti, two workshops, one large and one small, one old and one new, are responsible for the task of promoting tools in the entire southern and central regions.

Tian Xin's Danyang Workshop and Maicheng Wood Workshop have been in a state of relocation, separation, and reorganization this year, and have not produced as many iron and wood utensils as last year, not even one-third of last year.

This is a good time for other government-run workshops to catch up, and if Tian Xin's team of craftsmen completes the production plan, then other government-run workshops will have to face cutthroat competition.

The population is like this, and any point of constant competition is cruel to the artisan industry.

Otherwise, there will not be only two metropolises in the world today, Jiangdu and Yedu...... Forty years ago, there were not ten metropolises of this size, but seven or eight.

When bidding farewell to Ma Yan, Pu Yuan said worriedly: "Nanyang iron nails are widely used and are extremely conducive to military affairs. The prime minister has many instructions, and the lower officials suffer from a lack of manpower. If you can be accommodating, please transfer the prisoners to be used as artisan laborers. ”

"Pu Jun is relieved, I will tell you about this in detail."

Ma Tan blinked his eyes: "I just don't know when there is enough manpower to make a usable iron nail?" ”

Pu Yuan thought for a moment and shook his head: "Join the army and do your best, and the lower officials are close to what they can." It's hard to guess the exact date. ”

During the Northern Expedition to Guanzhong in the Northern Mansion, the iron nails shone brightly.

People in different positions have different interpretations of the details of the Battle of Guanzhong; Zhuge Liang is a soldier with the skin of yin and yang, and naturally sees the great usefulness of many gadgets.

Don't underestimate the role of iron nails, this thing greatly simplified the process of building fences in Beifu, and played a huge role in making temporary rafts and boats.

In times of war, efficiency is life.

According to the previous technology, the production of antlers and fences required cutting wood, cutting, and assembling wood...... This is not only technically requires, but also too many complicated processes.

Speaking of fences, how many ropes can the army carry when they are out on the march?

The original fence was either chiseled and fixed with a wedge, which required technology and processes; Or it is secured with ropes, which consumes valuable logistical capacity.

The appearance of nails has completely simplified the construction process of fences...... It's also very strong.

In this regard, the Wuhuan knights who were Xian Yufu were very speakable, and the Beifu soldiers who were in a hurry strengthened the shield array with nails in front of the formation, and the wheelbarrow was also fixed together with nails, which caused a lot of trouble to the Wuhuan knights when attacking.

Nails were driven to the planks and thrown to the ground, which was a nightmare for cavalry.

First, there is lime to build miracles, and when everyone guards against and uses lime, this thing will be like that.

Before the decisive battle of Guanzhong, the Wei army and the Beifu soldiers were equipped with new harnesses...... However, Tian Xin has prepared too many iron nail reserves here, which is obviously a weapon to guard against the new cavalry.

This shows that Beifu was the first to develop a new type of horse harness, and the Wei army should have heard the news and imitated it...... When imitating, it is natural that targeted cracking methods will not be considered.

It's also like lime, no matter whether it can be used in future battles, at least it must be ensured: what the other side has, you must also have.

War is fought with human life and equipment, and whoever has insufficient equipment must take his life instead of the consumption of equipment.

The use of equipment to exchange human life is precisely the core concept of the military skills school.

As long as the exchange ratio is disparity, the other side feels that it is very lossy and meaningless, and naturally there will be no will to fight.

On the Yizhou side, mountain warfare is the mainstay, and the training and training are fortifications, construction, and fortifications, all of which rely on equipment.

Whether or not cheap nails can be produced in large quantities directly determines whether the Yizhou army can keep up with the pace.

If you can't keep up with this step, then you won't have the courage to compete with Beifu in the future.

Although the production pressure was very heavy, Pu Yuan really wanted to grab Ma Yan's shoulders and shake this guy hard.

How much manpower can be allocated to the workshop?

At most, there are only 500 people, and normally there are 2 or 300 more...... What can be done with such a little manpower?

Listening to Ma Tan's tone, it seems that he can allocate two or three thousand manpower in one go.

If there are two or three thousand manpower...... Naturally, I dare to promise a promise.

But no, you can't be like Beifu, who always holds a surrendered army in his hand as a coolie.

Pu Yuan was sad in his heart, and Ma Jian was even more bitter in his heart...... Fei Yi and Dong Yun made a big disaster, Fei Yi committed suicide, Dong Yun fled to his home, out of righteousness and friendship, he couldn't sit idly by.

But now the Prime Minister's Mansion has also issued a document for sea fishing, and I don't know if Dong Yun can escape to Nanzhong.

If you can escape to Yongchang County, then naturally everything can be wiped out, and you are afraid of being arrested.