Until a faint white fish belly appeared in the east, Zhao Donghe came to Zhang Hao again, "Zhang Hao, I have decided, buy two artillery pieces, one each for the first generation and the second generation, plus 100 shells." ”

After that, Zhao Donghe muttered again: "This price is really too expensive." ”

Zhang Hao smiled: "That's it, if you dare to promise that you won't take it apart and study it after you take it back, and you will always buy the Zhang family's artillery and shells in the future, I can give it to you...... The price of a tenth, how?"

"So much?"

Zhang Hao smiled and said nothing, and finally Zhao Donghe laughed and stopped talking. Nonsense, I bought two artillery pieces where I wanted, and the reason why I bought a hundred shells was to take them back and dismantle them!

However, Zhang Hao's speech was so clear, and Zhao Donghe stopped bargaining.

But when it came to the specific payment, there was a problem again, Zhao Donghe had to pay with pills, and these pills were originally those pills that were going to support the country of Qixia.

Guan Zhengqing suddenly quit.

After a while, Zhang Hao finally said: "General Zhao, can I understand it like this, with the support promised by Your Majesty in person, you actually want to overturn Your Majesty's command?"

"This ......" Zhao Donghe instantly stuck.

Zhang Hao smiled very "gently": "If General Zhao wants to pay with this batch of pills, I personally will not have any opinion." But how do you explain to Your Majesty, how to explain to the country of Qixia, you have to think about it.

The Zhang family is the Zhang family, and the country of Qixia is the country of Qixia, which is completely different. ”

Zhao Donghyuk took a deep breath, his face full of confusion. Suddenly, someone next to him whispered in Zhao Donghe's ear. After a while, Zhao Donghe smiled: "Young Master Zhang, look at this, we have some exercises here, and there are excellent exercises that can be practiced to the peak of Yuanying."

The general exercises that can be practiced to the late Yuan Infant period and even the peak are worth 100,000 high-grade spirit stones. And the excellent exercises are worth 300,000 high-grade spirit stones.

In addition, we have some refining methods, alchemy techniques, etc., which can also be priced. ”

Zhang Hao's eyes lit up. The problem of exercises has always been the biggest problem that has plagued the development of the Zhang family - the essence is really crucial.

But Zhang Hao still kept an eye on it, asked Zhao Donghe to report the name of the exercises, as well as the first few sentences, etc., and then went to Feng Zhiling, Guan Zhengqing, and even Zhou Shuhai, Gu Xingdong, Zhou Jue, Bai Ye, Zhang Xinhan and others to discuss, to see if everyone has the same here, and at the same time ask everyone's opinions, how valuable these exercises are.

After asking around, there was no overlap in the exercises, but everyone gave a lot of opinions on the price.

In the end, Zhang Hao obtained from Zhao Donghe the three books of "Killing Immortals", "Fengming Decision", and "Ziyang Gong", which can be practiced to the late Yuan Infant period and even the peak, as well as a copy of "Five Elements Participating in the Same Deed", which is the secret book of alchemy.

Zhang Hao paid one first-generation artillery, one second-generation artillery, 10,000 shells, and 50 tons of special black iron for alchemy, with a purity of more than 99.5%.

Zhang Hao received the secret book of the exercises on the spot, but he had not yet obtained the practice notes, records, annotations, etc.—without these, he would not be able to learn from the experiences of his predecessors, the problems he encountered, and the solutions, etc., and it would only be equivalent to obtaining half of the exercises.

Cho Dong-hyuk also received artillery and 100 shells on the spot - these shells could only be used on the battlefield in the land of Qixia, and Jang Han personally trained Cho Dong-hyuk and others to use artillery.

Training is an incidental service, which can be regarded as a reward for the support of Zhao Donghyuk and others. The unique technician training system of technical sales also made Zhao Donghyuk and others' eyes brighten, and they even paid for it.

As for the remaining cannonballs and dark iron, they will be delivered in the next two months, and Zhang Hao will be able to obtain the complete exercises at that time.

Feng Zhiling, as a true disciple of the Xuanzhen Sect, vouched for both parties - by the way, Senior Brother Feng received a lot of benefits from Zhao Donghe, and extorted a ton of '99.9% Xuantie' from Zhang Hao.

If you want the disciples of the Xuanzhen Sect to be a guarantee, you have to pay a price, and Feng Zhiling must also charge a fee - this is the market.

It was a pleasant deal, and after getting the artillery, Cho Dong-hyuk personally tried two shots, and immediately excitedly and actively discussed the next tactics with everyone - no longer passive and slacking off. He really wanted to throw these shells on the heads of the army of the country of Jinyang.

............

However, when Zhang Hao was discussing excitedly, five hundred miles away, at the junction of Guangling County and Jianwu County, that is, the second line of defense of the country of Qixia, it was a different scene.

When dawn arrived, the heavens and the earth were still dark, and the faint whiteness of the fish belly in the east was as faint as candlelight.

At this time, Sima Zhen had already led the remaining 350,000 troops to the second line of defense, and Diao Deshan and other masters of the Yuan Infant Stage also arrived, sent three shells, and explained the situation at that time.

After one night, Sima Zhenyuan's strong foundation in infancy exploded little by little, and he was already able to stand on a high place and calmly command the legion.

For a commander-in-chief, cultivation is secondary, and the mind is the first.

In one night, Diao Deshan also carefully disassembled a cannonball, just as Zhang Hao and Dugu Junjie were worried, Diao Deshan and others used it all night, and they identified the composition of gunpowder and ordinary gunpowder, and also understood the structure of the cannonball.

"This black powder is made up of charcoal, saltpeter, and sulfur. The predominantly black-red powder is a bit eyebrow-raising, but it still needs to be studied.

The main thing is the structure of the weapon, which only hits the object with the hammer in the rear hits the firing pin in front of it, which in turn ignites the black powder, which in turn ignites the black and red powder.

So, I thought of two ways to defend against shells. The first is to use the space-like formation to slow down the speed, and eventually we will be able to capture this weapon. The second is to arrange a rigid barrier in front of the formation and detonate it in advance. ”

Sima Zhen breathed a sigh of relief, although everyone still didn't know that this thing was called a 'cannonball', but at least they knew that there was nothing mysterious about this weapon. That's good.

Sima Zhen looked at the structure of the cannonball carefully, and gradually he frowned. The production of shells turned out to be ...... It's subtle. The design between the firing pin and the hammer is very clever, and the tip of the hammer is an inclined surface, which causes a spark to spark if it collides with the firing pin.

In order to ensure that there will be a spark, there are three firing pin systems in the warhead section, one is steel, one is flint, and one is a steel firing pin with a flint hammer.

This design is because black powder is not particularly sensitive, and before the invention of thunder mercury and other inventions, Zhang Hao could only solve the problem in this way.

And on the firing pin and hammer, there are also subtle patterns that are unique to machining.

As the commander-in-chief, Sima Zhen saw more. But soon he shifted his gaze, and now the most important thing is not the shells, but the ...... The second line of defense of the country of perched xia ahead!