The big man surnamed Zhang took out the drawings from a dilapidated table on the side, and it could be seen that he didn't attach too much importance to the drawings, and he didn't cherish them very much.

"Boy, since you want it, then I'll give it to you!" Dahan gently handed the drawings to Shangguan Jiaxing.

Shangguan Jiaxing just wanted to reach out to pick it up, but he didn't expect this man to take the drawings away in an instant.

"But you and I are both mechanical scholars, so of course we know what it is like to usurp the research results of others! I wonder what you will give me if you take my drawings?"

When he said this, this man showed a sly smile on his face that was extremely inconsistent with his appearance, and the molars of Shangguan Jiaxing were itching!

"I knew you guy wouldn't be so generous! I really thought that the sun came out of the west, and it was rare for you to be generous this week, but I didn't expect to wait for me here!"

Shangguan Jiaxing was not surprised, he knew too well what kind of person this was.

"Tell me, what do you want from me? Don't tell me you don't have an idea!"

"Hehe, happy! Presumably you came here this time for Fengqing Gangyan, I don't want much, ten kilograms is fine!"

"Impossible!"

As soon as the words of this surnamed Zhang fell, Shangguan Jiaxing had already shouted, and it seemed that he was really angry!

"You also know what kind of output Fengqing Gangyan is, ten kilograms, and you're not afraid to kill you!

Just one pound, no more!"

"Hmph, boy, I'm afraid you're not dreaming, aren't you? A pound of Feng Qinggangyan wants to change my drawings? I'm a first-order extraordinary firearm! It's not a casual cat or dog!"

"So what? It's just a black picture, and it's still a defective product! It's just a pseudo-first-order! At most a kilogram, if you don't agree, I'll turn around and leave!"

Don't look at the young age, but Shangguan Jiaxing's momentum is not weak.

"Heh, I'm really scared when I am an old brother? Today, I, Zhang Zheng, will put the words here, less than five kilograms, I would rather burn it than give it to you!"

Regarding the bargaining between these two guys, Wang Yifan didn't have the slightest interest in paying attention, and yawned boredly on the side.

These two people are also magical, from the calm tone at the beginning, to the fact that they seem to be arguing with real fire later, but the next moment they can suppress their emotions and continue to quarrel, it is not easy.

After more than an hour of discussion, an agreement was finally reached at the price of three kilograms of wind green granite.

As a result, the two people who almost fought because of the price just now reconciled in an instant, and everyone had a smile on their faces, as if they were old friends who hadn't seen each other for a long time.

Coming out of that machinery factory, Wang Yifan had the opportunity to ask Shangguan Jiaxing, "What do you mean by the black picture?"

"The so-called black drawings refer to drawings that cannot be successfully certified by the official patent certification body!

The various drawings are roughly divided into two categories, one is from the hidden inheritance left by some Xianjia Cave Mansion or certain families.

In order to ensure that the secrets of the inheritance will not be revealed, it is rare to go to the state agency for certification, but there is no doubt that the machinery represented by this kind of black map is quite powerful!

And the other is the one we got. Because of the use of some patented technology, or the safety factor does not meet the national standard, or some other messy reasons.

Anyway, there is no way to pass the certification of this kind of drawing, and it is hard to say whether it is powerful or not, but there will always be various shortcomings. ”

Wang Yifan nodded in understanding, after all, if it was really a powerful drawing, it would not be so easy to get it into his own hands.

I can only hope that the finished product will not be too shabby!

The three of them followed the map inside the circle and went to the secret realm of the tower located in Jn.

Next, they just need to run in with each other in the secret realm and get enough wind green granite.

"Huh, what's wrong?"

Several people were talking and laughing on the road, and suddenly Lin Kai, who was wearing a mask, pulled Wang Yifan's sleeve.

Wang Yifan looked in the direction he was pointing at, and suddenly found a few acquaintances!

A strong man with a full beard, a young woman with a hot body, and a monk with squinting eyes......

Isn't that the one of those transcendents that a few people met on the train?

Wang Yifan took a closer look and found that it was not just these people, there were quite a few in the surrounding crowd!

"What's going on? What's going on here?"

Seeing that the direction in which everyone was moving was the entrance to the secret realm, several people couldn't help but wonder if something had happened to the secret realm.

Feeling the aura of the strong people around them one after another, their bodies couldn't help but be a little stiff and nervous!

"Look at you like this, and a few young people who haven't experienced blood, what's the matter?

Just when a few people were a little nervous, otherwise someone behind them was talking!

A tall and thin man who couldn't see his age was walking behind Wang Yifan and them, and when he saw Wang Yifan and them turn around, he couldn't help but glance at them, his face full of disdain.

"This old man, I don't know what the gladiatorial competition you are talking about?"

Shangguan Jiaxing rolled his eyes and asked with a smile towards this bamboo pole-like guy.

As a result, this old brother took off the gourd on his waist casually, opened the stopper, and they could smell a strong smell of wine from Wang Yifan, and even wondered whether it was wine or alcohol!

The old brother took a sip of the liquor and burped at Shangguan Jiaxing, and a mouthful of stench sprayed on his face, making Shangguan Jiaxing really can't help it, covering his nose and retreating again and again.

In a flash, the bamboo pole had disappeared into the crowd, and I don't know where it went.

"Damn! Lao Tzu hates drinking the most thing in my life! Don't let grandpa me meet you!

Otherwise I'm ......"

Wang Yifan didn't expect that this little guy should not look old, and his temper is not small!

Seeing that the big guys were all looking at him with strange eyes, Shangguan Jiaxing pursed his lips, blushed a little, and stopped talking.

After walking a short distance, they came to the door of a club called Tower Entertainment, and several people looked at each other and walked inside.

At the door of this club, there were two bodyguards in black suits and sunglasses, Wang Yifan could feel that these two were definitely extraordinary!

And the strength is not weak, it should be around the peak of the first order, anyway, it is much stronger than himself.

Tower Entertainment can be said to be a large club chain in the country. As long as there is a secret city, there is this club.

After all, the entrance to the secret realm is in this club!

However, Wang Yifan is still here for the first time, and he has entered the secret realm through the entrance of the school before, and has never been to the club located in Sjz City.