The follow-up troops returned to Nanling one after another in three months, including their booty was also escorted back in batches, and during these three months, Lu Zhe only entered the city and then met with the envoys of various countries, including Feng Zao and Dong Fei, and never met again.

In ancient times, the pace of life was quite slow, and Lu Zhe also needed to deal with the government affairs of his subordinates when he returned from the expedition, because his subordinates could not be in charge of government affairs during his absence, so even if he was arranged in the post house, Lu Zhe only sent his subordinates to entertain him and did not meet him in person, which was not rude.

Taking this opportunity, the envoys of various countries made a request to go around, and Lu Zhe thought about it for a while, except for the various cities and important departments that were not allowed to enter, the army and the countryside did not prevent the envoys from going to watch.

Lu Zhe was different from everyone else at this time, he grew up in a fast-paced social environment, so there was no procrastination about how long he needed to rest before he could do things. Seeing that there was a special reason for the envoys of the countries not to be summoned again, he had not yet figured out what kind of posture he should take to meet the people sent by the kings of the countries, and he had to deal with Feng Zheng and Dong Fei before officially receiving the envoys of the countries.

There are too many intentions to delay time, and Nanjun, which has only been developed for more than a year, has changed a lot, and the civil and military forces of Lu Zhe's forces intend to let people from other countries see the wealth of Nanjun, and even the army agrees to visit to show that the army is in a state of being ready to fight at any time.

Only the weak will hide it, the strong have never been stingy to let people find themselves strong, and those subordinates of Lu Zhe, who have the confidence to conquer the world, may not understand the importance of showing the strength of the strong, but they have a kind of show-off mentality, that is, "Don't look at us for only one year, but under our rule, the people are rich and the country is strong."

In fact, Lu Zhe's idea is extremely simple, the envoy group will not only come with two envoys, but must bring the necessary attendants and guards, even if they do not agree to visit, they will send people to secretly investigate. It's better to monitor it in the open.

In the past three months, Lu Zhe has done a lot of things, the first thing he did was to inspect the iron-making technology that had been researched, and to conduct a strict inspection of the iron weapons produced.

I don't know if it's a coincidence, the iron-making method invented by the craftsmen under Lu Zhe is extremely similar to the technology of the Han Dynasty, which adopts the method of multi-furnace process, and the shadow of wet iron-making in the Song Dynasty can also be seen.

The use of multi-furnace process is a not complicated process to remove impurities, in fact, this method has been able to train steel, but the quality is very poor, there will be inferior steel because the craftsman discovered the "refining carburizing" technology, the smelted metal in the Han Dynasty should actually be called "hundred steel".

Lu Zhe has no knowledge of the chemical industry of metal smelting. If he understands, he will remind him a little, after going through the multi-furnace process, he will use the steel frying technique to improve, and finally use the wet treatment that has been discovered, after repeatedly adding carbon, manganese, phosphorus, sulfur and other elements, and then carry out multiple fire refining treatments, then qualified steel will also appear.

Of course, carbon, phosphorus, and sulfur have been discovered, but silicon, oxygen, nitrogen, titanium, vanadium, and other elements...... It seems that it will be at least two thousand years away.

It's a pity that Lu Zhe is modern architecture, even if he has seen the relevant knowledge of ironmaking on the Internet. Without systematic learning, only inhuman demons will achieve more powerful achievements than experts in fields that they have not delved into.

The technology developed by the "local" craftsmen is extremely close to the period of Emperor Wu of the Western Han Dynasty, and it has been 60 years ahead of the world. After the emergence of this technology, combined with the "unique" assembly line method of the Qin people, what was lacking in the standardized production of iron weapons was only the production of zuò molds. Then the casting and melting technology of pouring gold juice is used, and finally the sharpness is polished to the finished product.

Lu Zhe, who didn't know the art of alchemy, only knew one thing, the iron sword made by the craftsmen was fifty centimeters long, and when it was cut against the bronze sword. The iron sword will burst out of the gap, but the bronze sword will be cut off.

Metals also have fatigue, and when they reach a certain level of fatigue, they will collapse on their own. So it's not uncommon to be very rigid one moment and fold the next.

Of course, Lu Zhe didn't think that metal also had fatigue, but the professional metallurgical craftsmen did not forget it.

The craftsman reported the results of the real yàn, and Lu Zhe immediately understood when he listened to the report, that it was similar to the durability of the equipment when playing the game, and the durability of each weapon could not be accurate, only an approximate real yàn would show how much time it had passed and the weapon was about to break.

Is there a tool that won't break? The iron soldiers that can be produced in a standardized manner have been confirmed to be superior to the bronze soldiers at their peak, but even if the service life of iron weapons is shorter than that of bronze weapons, as long as it is not too short to the point of exaggeration, this does not matter much, and it is good to have planned production without large-scale hoarding.

Lu Zhe vaguely remembered that there was a gold-plated method to prevent rust?

The so-called gilding technique is to coat the outside of the iron with a layer of copper, leaving only the part that is opened, so that the iron is isolated from water, air, and other materials that can cause it to rust.

Lu Zhe asked the craftsman, but found that as early as the Spring and Autumn Period and the Wu Kingdom, the gilding technology had long been used up, and it was generally used to decorate the ornaments...... A gilded iron sword would be worth twenty times as much as it was ungilded.

Twenty times, just to prevent rust from increasing the cost of twenty times, this is not necessary, anyway, a soldier will never damage only one weapon in a war, in fact, if the war is fierce, a soldier must replace at least one weapon in a war.

After determining the quality, Lu Zhe, who was crazy, did not know that he could train steel with higher density and better quality than 100 steels by reminding him, so he immediately ordered the construction of molds and began the standardized production of iron swords, simple knives, spear heads, arrowheads, etc., and must produce iron weapons that can arm at least 50,000 soldiers before the autumn.

In order to commemorate something, or to be in a bad mood, Lu Zhe did another very special thing, he instructed the craftsman to make a hundred gold-plated war swords, and if he could, increase the length of the sword body to seventy-five centimeters, and then make it more beautiful.

Not...... This hundred gorgeous war swords should be named, is it called Lu Hou Jian, or is it called Lu Zhejian, or what? In short, Lu Zhe intended to use it to reward meritorious generals.

It's upgraded, it's finally upgraded to the Iron Age, and it's a more powerful upgrade than the metallurgical technology of Chu State, at least in the case of the same iron sword, the war sword of Chu State was also cut off by the war sword on Lu Zhe's side.

The incomplete Iron Age, at least two months have passed today, the production of iron swords, knives, spear heads is only enough to arm 3,000 people, because the mold of the arrow is still in the stage of building the mold because there are too many needs.

Lu Zhe was not completely carried away, in fact, the production of bronze weapons was not terminated, after all, it always takes a process to renew, if the production of bronze weapons can be terminated when iron weapons can be produced, and an unexpected war breaks out in this period of lack of follow-up logistics, then there is no place to cry.

Regarding the process of the production batch of the iron soldiers, Lu Zhe only set a scale and time, how to adjust it was a matter for Xiao He to coordinate with various Yuecheng.

After paying attention to the matter about weapons, Lu Zhe originally wanted to accompany the pregnant Lu Pheasant and Wei Wen, but when this idea just arises, he is faced with a mountain of official documents and bamboo slips.

Five counties...... Wrong, it's almost eight counties, Changsha County, Minnan County, and Nanhai County have been depicted into the territory to which Lu Zhe belongs, there are nearly 60 large and small counties on such a large territory, and there are hundreds of townships under the county, a township is at least composed of five li, how many government affairs should be gathered together?

The management of the Qin system has been extended to the smallest pavilion of the administrative unit, and Lu Zhe's administrative system is imitated by the Qin state and has produced some changes, such as the "pavilion" of the smallest administrative unit, because those veterans have gone down to take up positions, the direct management power of the township to the pavilion has changed, and at the same time, the county has only the right to supervise the township and has no right to issue administrative orders.

The administrative reform was a very radical centralization, and not only was the Qin state more strictly collected, but it was different from all the countries it is today. As long as the territory controlled by Lu Zhe is on the top, only the central government has the right to issue administrative orders, and only the right to supervise layer by layer, so that the national power can be used efficiently, and at the same time, the situation of secession will be avoided, and the nonsense of officials will be reduced.

In the face of the mountain of official documents, it became urgent for Lu Zhe to establish an administrative system similar to the cabinet system, and he could not personally deal with trivial matters, otherwise he would have to pounce on government affairs all day long except for eating and sleeping.

Cabinet? Of course, it can't be called that directly, but it can be used to make a fuss about the division of responsibilities of the three princes and nine secretaries, and the planning of these systems makes Chu Zhao's uncle and grandson Tong more proficient than Lu Zhe, and how to divide it in detail after Lu Zhe formulates the rules, that is the matter of uncle and grandson.

In the spring, the so-called spring flowers, Ji Bu and Luo Shao have already sent back the war report, and the two groups of people have determined to occupy the territory that originally belonged to Minyue, Nanyue, and Ouyue, and what is missing is to clean up the Baiyue on those lands. Sima Xin also advanced to the west bank of Lishui on the Lingnan side, and has now gained a firm foothold in the Dajian fortress according to Lu Zhe's instructions, waiting for the arrival of follow-up troops and baggage, and a new round of offensive will be launched again.

The difficulty of attacking Lingnan is not that it is difficult to fight with the Baiyue people, but that it is in a state of wilderness at all, and the army needs to open the way if it wants to march, so the speed of advance is destined to be not fast.

Lu Zhe, who had a plan to attack Lingnan, did not interfere, and when he "rested" for three months, the envoys of various countries had no opinion, after all, they could observe Lu Zhe's territory nearby, but Feng Zheng and Dong Fei couldn't wait. (To be continued......)