The Hanyan Tea House is not far from Sun's house, and after walking out of the alley, you will see the small shop after passing through a few streets.

After everyone went up to the second floor, they found a private room and sat down, and the old shopkeeper and the little family stood outside the door and waited under the sharp gaze of Master Sun.

After everything calmed down, Shen Wuyan propped up his head slightly, yawned lazily, and then swept his gaze over the serious old man, and sighed lightly: "This teahouse was opened by a friend of mine......"

The careless state he deliberately made was really unnecessary in the eyes of Master Sun, so he suddenly felt a little contemptuous in his heart.

"The old man knows that the last time was in the smoked teahouse in Liaoyang......" Master Sun paused for a moment, thinking in his heart that this teahouse was still unknown in Liaoyang last year, and this year it was actually opened to Ningyuan City.

Although he thought so, he didn't show the slightest surprise, and still said calmly: "There are still some problems with the batch of goods that I confessed...... I don't know if it's the wrong way or if it's ...... It's still easy to blow up. ”

"Exploding the chamber ......" Shen Wuyan took a deep breath, this exploding problem is really serious, whenever it is used, it is easy to injure and kill one's own people, and over time, the effect gradually declines.

So much so that he has been studying this problem in the early years, and although he has improved a lot, and some firecrackers can really avoid exploding to a certain extent, and even improve a lot in accuracy and power, it is really difficult to operate such a heavy or artillery gun as the Furlong machine.

Whether it is the need for improvement in iron smelting, all the precision and meticulous molds, and even the various management problems of the laborers, all affect the final results.

After all these years of hard work, Shen Wuyan had already realized that even if he knew all the technologies of his previous life, even if he knew the entire manufacturing process of the atomic bomb, it would still be difficult to make one ten-thousandth of the parts a few years ago.

However, of course, the atomic bomb does not need to be rebuilt, but the firearm cannot be slack, after all, it is only a procedural problem, as long as it is solved in detail, there is still a way to solve it in the end.

Moreover, this kind of heavy artillery represents the advancement of this era, and the Western powers, which are not far away in time and space, have probably begun to delve into these objects at this time.

Even if they haven't occupied the leading position yet, for Shen Wuyan at this moment, they still need to study carefully, if nothing else, just for the people of this land to live better after a certain year and a certain month.

"It's not your fault that the bore is blown up...... Pick a few pieces and send them to the inn...... Fur Rang also brought a little bit to see if it could be improved......" When he said this, Shen Wuyan was really a little helpless.

This baggage dynasty, he himself is a regular envoy, he has all kinds of tasks to complete, but he has been stripped of his position, and now he is at best a retinue of Lord Yang in the mission.

It's just that as an entourage, Lord Yang has more trustworthy Yang, so he has a lot of time.

Now this is a lot of time to study some artillery and muskets, which can be regarded as adding some fun to this boring journey.

It's just that these words sounded a little strange to Master Sun, and the old man secretly muttered in his heart how could this Chief Shen soldier still carry these firearms on the way out, and how could he carry the firearms so bulky.

But since Shen Wuyan mentioned it like this, he didn't ask too much. The Shen Zongbing in front of him is equivalent to the patron of the Sun family, whether the imperial court needs to purchase firearms, or whether Shen Zongbing wants to buy firearms privately, in short, they are all guests.

If the business reaches this point, there will eventually be some partial income, even if the imperial court prohibits doing this, but the imperial court has a policy, and the Sun family will have corresponding countermeasures.

Of course, the Sun family also has a principle that firearms can be sold to anyone in the Ming Dynasty, but not to the enemies of the Ming Dynasty.

Master Sun didn't think about these things that had nothing to do with him, and after a little hesitation, he remembered another thing, and hurriedly said: "The four-wheeled carriage has been built...... There are seven cars in total...... Seventy thousand taels of silver ......"

Seven carriages of seventy thousand taels of silver, even for the Sun family, it is not a small amount, and a carriage of ten thousand taels is really rare in the entire Ming Dynasty.

At first glance, Shen Wuyan's expression did not change in the slightest, as if this carriage was indeed worth the price, or maybe the price was very fair, in short, he was very satisfied, and did not care about the price in the slightest.

On the other hand, Master Sun was also in such a peaceful state, and he did not show the slightest joy because of the construction of a carriage of 10,000 taels.

However, in Master Sun's peaceful state, there seemed to be a curiosity in it, and after weighing it for a long time, he said in a deep voice: "To be honest, there have been four-wheeled carriages in the past...... But after all, it is not as convenient as the two wheels, although the weight of the two wheels is worse, but after all, it is still practical......"

A smile flashed at the corner of Shen Wuyan's mouth, the so-called four-wheeled carriage that had appeared was not the same as the four-wheeled carriage he sent to the drawings, the reason why the four-wheeled carriage had not been used in the past was mostly due to various factors, such as the steering mechanism was not as flexible as the two-wheeler.

In addition, in recent years, courtiers have taken sedan chairs regardless of martial arts, so the carriage has rarely received attention, so the improvement has gradually stopped.

In short, there are all kinds of limitations, Shen Wuyan combined all kinds of designs, and finally improved these problems slightly, but after all, there are still many problems, such as the increased wear and tear of the carriage, and the incomplete repair of the road, which he will not be able to solve for a while.

However, for this mission, these seven slightly modified carriages can already come in handy.

And for the old man Sun who studied these instruments in the times, he will naturally be interested in this object, although the drawings have been handed over to him, but the principles are still impossible to figure out.

"Master Sun, you also know the rules......

Old Man Sun frowned slightly, and couldn't help but raise his eyes and sweep over Shen Wuyan, who was smiling, and secretly said in his heart that this little man was still so careful, but if he could master this method, it would be a great achievement of the Sun family.

However, he also knew that if he wanted to ask for a way, the other party would definitely not give it, so he put the matter aside, then raised his glass and took a sip of tea, then took a deep breath, and then nodded reluctantly, and said in a deep voice: "Yes...... Don't ask where it came from......"

Shen Wuyan nodded with satisfaction, thinking that he still had to hang some after all, just like hanging, now this Master Sun is so polite to himself, I think this is also the reason.

Although I didn't expect this one to come out early on, but since it has this effect at this time, I don't hesitate to restrain this master.

"But the way to improve the Furlong machine...... I will send someone to you later, and I will thank the old man...... But ......" Shen Wuyan smiled faintly, and then continued: "But it is ...... to purchase firearms from the Sun family for a while."

Shen Wuyan had already informed Xu Guangyuan that most of the firearms in the Shenji Battalion would be forged using this method, which was not a big secret, but it was still a big benefit for the Sun family.

Old Man Sun tried his best to suppress the joy in his heart, but his body trembled, and an undetectable smile appeared on his face, which was still looked at by Shen Wuyan. He groaned slightly, and replied, "You know and I know." ”

Shen Wuyan grinned and said with a smile: "Master Sun also knows the reason for choosing the Sun family......

Master Sun groaned for a while, a hint of smugness appeared in his eyebrows, and he snorted lightly: "My Sun family has been doing this business for a few years, so it is naturally the best choice......

After saying this, Master Sun's gaze stayed on Shen Wuyan's face, and after seeing the other party's affirmative look, he nodded his head again.

Although Shen Wuyan said this, he had other reasons in mind.

In fact, when it comes to technology and some of the others, the Sun family is not as good as the Shenji Camp in the capital, after all, the Shenji Camp gathers the best people, financial and material resources in the Ming Dynasty, even if the Sun family is so large, it is difficult to look down.

The reason why the Sun family was chosen was because they considered that this matter needed to be concealed from the court officials, and secondly, because the benefit of the Sun family was that they operated it themselves, so they had the advantage of running it themselves.

In recent years, the imperial court has been weaving firearms and the yamen has long been unbearable, but there is a lack of unified management, and it is difficult to supervise the manufacture of dry objects.

Although it can also make the best firearms, if it is generally calculated, the Sun family is still the most suitable place.

However, since Master Sun said that he was happy in his heart, Shen Wuyan would not care about giving him this face. It's just that after the meeting, there are more important things to deal with.

The conversation between the two was very satisfied, but it made the old housekeeper standing on the side worry for a while, and secretly said in his heart, this Mr. Shen has such a good relationship with the master, if he shakes out what happened just now, how can he still stay in the Sun family.

At my age, if you have no strength, and if you have the ability but you don't have the ability, how can you survive......

On the contrary, the little family members standing on the side always looked away from Shen Wuyan and Master Sun, with a slight nervousness on his face, but more of a strong admiration and flattery.

"Butler Fu...... You have a relationship with Mr. Shen......"

Steward Fu was a little impatient, and snorted lightly: "You have asked seventy times......

And in the early morning, when all this was peaceful, the sun gently fell through the window and fell on the polished wooden planks on the second floor, and the old cat, who had howled all night, was finally able to sleep for a while.

Several masked men in black lurked in a dark place in the teahouse, but their eyes stayed in front of a window on the second floor.

"The old guy is in that room...... The Great Khan said...... The reward for killing him is 10,000 taels ......"

"Ten thousand taels...... This old guy has always been reluctant to sell us firearms...... It's really a cow's temper......"

"Cow temper ......" A sturdy young man with a scimitar pinned to his waist snorted coldly, then wiped the crossbow arrow in his hand, and sneered: "Even if it is a cow, the old man has shot through the ...... for him"