After listening to Tian Buli's idea of developing coal and iron near Handan, Zhao Yong was also quite moved. For him, it is a good business to be able to make money, but what he sees more deeply is actually using these two things to leverage the powerful interest groups around Handan!

A qualified politician will not ignore economic interests, but what they see more deeply is actually political gains!

For Zhao Yong, the magnates of the Zhao State around Handan controlled most of the agricultural areas of the Zhao State, which made him, the monarch, have a lot of constraints in the entire Zhao State, and he has been seriously hindered from doing something!

Taking this Linhu invasion as an example, if it weren't for the opposition of the nobles around Handan and their refusal to take out the grain, why would he ask the merchants of Taoqiu to support him in this battle?

If he has a rich iron farm tool in his hand, then the powerful people around Handan will ask him for their own interests! In this way, he will naturally be able to divide and disintegrate these nobles, so as to control the entire Zhao Guodong Mansion in his hands!

And the use of coal to supply fuel for the whole of Handan is actually what Zhao Yong wants to see. Handan, as the capital of Zhao State, has been almost cut down after years of development. This also makes Zhao Guo now have to cut wood from the purple mountain west of Handan, which greatly reduces the efficiency of Zhao State's military manufacturing!

Therefore, for Tao Qiu's desire to intervene in Handan's two businesses, Zhao Yong quickly agreed after thinking about it. The nobles around Handan are all powerful people of the Zhao State, and they are not as easy to talk as the nobles of the Song State. Therefore, Tao Qiu's participation in these two businesses is not able to eat alone, and he needs to directly share half of Zhao Guo's benefits!

After Tian Buli and Zhao Yong negotiated, leaving only a few people prospecting near Handan, he returned to Taoqiu with the rest of the team and Zhao Yong's advisor Qiu Hao.

Soon, in the Taoqiu market, a kind of Zhao war bonds guaranteed by Zhao Xue, the mother of Taoqiu, began to be issued. After several years of rapid development, the income of various industries in Taoqiu has also begun to decline, so this kind of war bond with high yield and strong guarantee is still welcomed by many people!

The first 50 million yuan of war bonds were quickly sold out, but this money did not stay in Qiu Hao's hands for half a day, and it was quickly converted into bills of exchange in Taoqiu's major commercial houses and factories in Taoqiu's money bank.

With such a huge amount of money, the major trading houses and factories in Taoqiu are like clockwork war machines, and they begin to run vigorously!

The merchant houses engaged in the grain trade received the money and immediately began to move the grain. Among them, some people transported grain from the north of Wei to Handan; Some people use the identity of the crown prince of Weiguo to buy grain in Weidi and then transfer it to Zhao.

And the most amazing thing is Pu Yangxing's handwriting, he alone provided 700,000 stone of grain for Zhao Guo!

His method was very simple, he directly used his connections near Handan to buy grain from the nobles of Zhao State, and he easily raised a large amount of grain! Zhao Yong, as the monarch of Zhao State, couldn't let the nobles of Handan take out the grain, so let a merchant like Puyangxing take it out, I don't know how Zhao Yong would feel if he knew such a thing!

Puyang Xing is also very smart, in order to "cover" these Zhao nobles, he rented a large number of ships to and fro on the Zhangshui, thus giving Zhao a false impression that all grain is transported from various countries!

In this way, in just one month, more than 1.5 million stone of grain was gathered in Handan City. Such an efficient way of raising food made the entire Zhao country amazed!

As for the large amount of equipment needed by Zhao Guo, although it was the first time that the factories in Taoqiu had carried out such a large-scale production. However, for Tao Qiu, there is no problem in completing this production!

All this is naturally the rule that Dai Yan has set when he created each factory and used it as a standard for other factories: division of labor.

In Dai Yan's view, the improvement of productivity in handicraft industry and industry is actually nothing more than two aspects. One is to use machines for production, and the other is to divide labor.

Dai Yan has always wanted to create conditions for machine production and manufacture suitable machine tools, which is still too difficult for today's Taoqiu, although Dai Yan has also invested heavily in research and development, but the results have not been great.

In terms of division of labor, Dai Yan's harvest is relatively large. Because it's not a technical issue, it's purely a conceptual one. All the equipment produced by the various factories in Taoqiu actually relied on this division of labor.

Take the manufacture of divine crossbows as an example, a set of divine crossbows is not completely made by a special person.

First of all, it is the lumberjacks who save the good wood or bamboo, and sell it to a specific armor factory that makes crossbow arms and bow arms.

The first military factory will carry out special treatment for these tough wood and bamboo. After it is processed, the military factory will carry out different processing according to the different models of crossbow arms, so as to manufacture the various crossbow arms needed.

At the same time, in the B military factory, which is completely out of the border with the A military factory, the production of crossbow machines has just begun. In the beginning, the crossbow machine required a steel mill, and even a few copper foundries in Taoqiu, to produce specific splices. When all the splicing parts are made, they can be transferred to the B military industry for assembly and a specific crossbow machine can be manufactured.

For a set of crossbow strings, the crossbow strings are produced by the C factory, which specializes in the production of various ropes, bowstrings, and crossbow strings. Different crossbows require different strings.

After having a crossbow arm, a crossbow machine and a crossbow string, the crossbow factory, which is responsible for designing and manufacturing crossbow machines, will purchase a sufficient number of components from the three factories A, B and C, and then in the crossbow factory, the workers will assemble a part of the entire crossbow according to the assembly line, and assemble it. In this way, a whole divine crossbow can be considered complete.

And the benefits of making a crossbow in this way are actually very numerous.

First of all, the crossbow made in this way, because of the division of labor, every worker in production, because he is making something he is familiar with, is naturally efficient. In the entire production of the crossbow, a lot of unnecessary consumption is reduced, and its efficiency is greatly improved!

Secondly, because each part of such a crossbow is standardized, if any part of the crossbow is damaged on the battlefield, it is possible to choose the parts that are still intact among the other damaged crossbows. As a result, the damage rate of the crossbow on the battlefield is much lower than that of a crossbow made individually.

In the end, because such a crossbow is done in a cooperative way, no worker who produces a crossbow can master the accurate method of making a crossbow. And even if the chief designer who designed this divine crossbow, if he left the entire system of Taoqiu, it would be very difficult to perfectly replicate this divine crossbow, because he could not master the manufacturing process of various materials, and there were no many workers to cooperate!

And the divine crossbow created in this way is not something that can be easily copied by a single person. It takes a whole system to work together to get it done!

This is also the effect that Dai Yan hopes to achieve - give you a Qian Xuesen, and you will not be able to make a rocket immediately! If you want to be able to perfectly replicate the "rocket", then build the entire industrial system first!

As for the "Qian Xuesen" who designed these weapons in Taoqiu, Dai Yan will carry out strict protection and protection, so that the possibility of Taoqiu's advanced military equipment being leaked out will be greatly reduced.

This is also the biggest confidence of Dai Yan who dares to sell bed crossbows and ballistas to Zhao Guo, which are truly lethal weapons!

Under the operation of the whole big machine of Taoqiu, all the factories in Taoqiu are like parts on the machine, and they have also started to operate. Soon, the weapons worth more than 35 million yuan purchased by Zhao Guo from Taoqiu were actually manufactured in just half a month!

Among these weapons, there are 1,000 sets of cavalry equipment, 10,000 sets of crossbows, 500,000 crossbow arrows, plus some crossbow machines, ballistas and melee equipment!

As soon as these weapons were removed from the factory, they were immediately transferred to Zhao by water. Therefore, only a month after the issuance of the war treasury bonds of the Zhao State, all the war materials of the Zhao State against Lin Hu had all gathered in Handan!

Such an efficient war machine made the entire Zhao Kingdom stunned! You must know that even if Zhao Guo is left to do it himself, it is already the most conservative plan to prepare so many war materials in two months!

However, Zhao Yong didn't have time to sigh anything, he drew 3,000 elite cavalry from the Zhao army, and reequipped 1,000 of them with a full set of cavalry equipment; Subsequently, he immediately dispatched 20,000 elite infantry, followed him, carried sufficient rations, crossed the Taihang Mountain, and launched an attack on the invading Linhu tribe!