The big fish was the one lured by the Tangyuan couple to the fishing trap in the river bay. Yu Changsheng didn't recognize it: "There are so many new things in the river... wait a little longer..."

After saying that, clicked on a communication: "Old Feng, Lao Feng, you have found the materials you want! Come to the guild quickly!"

A voice over there seemed to disapprove: "Ge, you turtle want to lie to me again!"

"Does love come or not!" Yu Changsheng was too lazy to talk to him, and teleported the pictures of the big fish and fish bladder over, and then cut off the communication.

After thinking about the words, "Xiao Tang, your things are really a bit of that... They are too expensive. You should go to Shudu to take action. Zizhou. The buyer who can eat this batch of goods is afraid... "

Tang Ning smiled and said, "Uncle Yu, I would like to ask, has the contribution point system of Zizhou and Shudu been connected?"

"This is not yet." Yu Changsheng said: "But there will be a branch of the Finance and Management Bureau in the city, where exchanges can be carried out."

"Is that true? What is the exchange rate?"

"Now, the contribution point of one Shudu can be exchanged for the contribution points of two Zizhou, and the Finance Management Branch will charge a 10% handling fee."

"But you are residents of Shudu. If you exchange it in Shudu City, a Shudu contribution point can be exchanged for 2.2 Zizhou contribution points, and there is no need to pay the handling fee."

“It’s not cost-effective to exchange in Zizhou.”

"That's it..." Tang Ning immediately discovered the trick: "Does the rice and wheat sent to Shudu every year be settled with the Shudu contribution point? Or is it settled with the Zizhou contribution point?"

"In the past, it must have settled according to Shudu, because Zizhou had no contribution point system before."

Tang Ning felt a little nervous. This was not like a foolish move that Urasuo could use. It was clearly intended to exploit and exploit the surrounding cities.

The United Council is now trying to expand its impact on peripheral cities and strengthen management. This policy will definitely have a huge adverse impact on this purpose.

"Who is so bold and treats all the people in the outer cities as fools?" Tang Ning pretended to stand up: "The same is true for other outer cities? Didn't the news station see this regulation?"

"It's not something!" Lao Yu was also angry, but fortunately the old man didn't seem to care much about current affairs: "But that's the matter of the people in the city. Our guild mainly focuses on bartering... But then again, Xiao Tang, your batch of goods is too expensive, and bartering is not easy..."

"Uncle Yu, do you know what I want?"

"Hey, do you need to guess this?!" Yu Changsheng looked like you were taking the elementary school questions: "What can you lack in Han'an base? What can we do in Zizhou? Isn't it just agricultural machinery, weapons, and food!"

"Then I've become simply making contributions."

"What does it mean? Wait, brother, do you mean that these things are your own?"

"When did I say it wasn't my personal?"

"You can't sell private ones here," said Lao Yu: "You have retained this batch of supernatural powers so abundantly. If you sell them in Zizhou, you will lose a lot!"

After saying that, I was really reluctant to let it go, so I picked two bear claws, a few crocodile teeth, and the bottle of fish bladder: "I can give you these things, don't worry, the contribution value is guaranteed to be no less than that in Shudu."

"It's okay." Tang Ning smiled and said, "I can't go back to Shudu for a while, but Zizhou will often come. You can give a price to those things, and the rest will be left with you. Whenever it's convenient to take action..."

At this moment, an old man with rosacea rushed in: "Lao Yu, where is that thing?!"

Lao Yu laughed: "I thought you weren't here. I'll sell it to this guy."

"You!" The old man was furious, and his nose looked even redder. He suddenly turned his head and grabbed Tang Ning's arm again: "Brother! I'll transfer that thing to me just now. I'll give you twice the amount of contribution you give Lao Yu. No, twice the amount of contribution!"

"Hahahaha..." Lao Yu laughed so hard that he leaned back and forth: "Turn a chair and sit down. Let me introduce you to me, this is the chief mutant weapon manufacturer of Zizhou, Feng Jieru, Lao Feng, these two are the Zhang Team and Tang Team from Han'an."

"Han'an, you're Tangning!" Old Feng of Rosacea also responded: "Did you bring your bone knife and leather armor? Let me show it."

"Hello Uncle Feng." Tang Ning smiled and said, "I didn't bring it. I came here to hang out and rest."

"Oh..." Old Feng was very disappointed, and he remembered what he saw in front of him: "That...fish maw...that..."

"Hahahahaha..." Lao Yu looked sarcastic: "Don't worry! Xiao Tang came here this time and wanted to take action. I think the fish bladder should be something you need urgently recently, so he was so kind to call you. Who would dare not give me face!"

After saying that, he glared at Feng Jieru: "I can't deal with you!"

"I said you old man!" Feng Jieru finally breathed a sigh of relief and dragged a chair to sit down, and brought out a drawing: "Xiao Tang, you are a big expert in jungler, come and take a look at this."

On the drawing is the design drawing of a crossbow arrow. The crossbow arrow is very short, the arrow is the snake teeth of the Qingming snake, the shaft is the hollow branches of the poisonous Eucommia ulmoides, and the tail feathers are three narrow and long, which are the flying feathers of the pyrophora bird.

The Qingming Snake is a snake that lives in the mossy fields of the mountains. The characteristics of this snake are opposite to ordinary reptiles. It is active in winter, dormant in summer, and likes cold climates.

The pyrophora is a summer migratory bird. The one who loves to set fire is set. It often takes advantage of the inattention of the wilderness hunters and rushes to a dry place with burning sticks in their hands, burns a piece of land, and then pecks at the burned insects.

In the mutant weapon manufacturing tutorial, these two materials cannot be made into weapons together. After the two are mixed, they will not get superpower bonuses, but rather - original bone arrows that are worse than ordinary steel crossbows.

These materials have special attributes of superpowers, and can have magical mutual consumption, repulsion, and bonus phenomena between them. Superpower weapon manufacturers call it the generation and restraint effect.

The green snake teeth and the pyrophobic bird feathers are standard mutually repelling materials.

Making such things is not just a simple problem of failure, but often has severe reactions and hurts the producer.

Tang Ning was stunned: "What is the design idea..."

"The idea is very simple." Old Feng proudly said: "Everyone knows that the superpowers of Qingming Snake Tooth and Chihuan Bird Feather are mutually exclusive, and forcibly pieced together will cause a terrible reaction."

"But if this reaction can be controlled to occur only when the crossbow arrow hits the prey..."

"That can turn into a small bomb!"

"That's all the materials and time!" Old Feng waved his hand: "Xiao Tang, you don't understand yet!"

"This thing is specially used to deal with mutant beasts. Don't forget that there are also a large number of supernatural powers in the mutant beasts..."

"Use it...can the superpowers in the mutant beast?" Tang Ning was shocked.

"Yes!" Old Feng smiled so hard that his eyes were slit, and the rosacea was red like a glowing light bulb.

"Wait!" Tang Ning suddenly thought of a question: "The principle of this crossbow arrow is to design the first half as an ice-attribute superpower field, and the second half as an fire-attribute superpower field. But Uncle Feng, how can you ensure that when shooting prey, the two superpower fields can react with each other?"

"So, a small piece of ghost dodder seed should be buried in the empty tube position of the central hollow tube of the Eucommia arrow shaft."

Guiduscuta is also a mutant plant, its characteristic is that it has a sheath outside its seeds.

When you feel the sudden huge external force, the sheath will pop up a sharp thorn along the direction of the source of the force.

This spike also has the function of supernatural powers to sense and conduct, and Guidushu uses it to sense whether it is a mutant creature that touches itself.

If it is an ordinary beast, it will be poisoned and become the fertilizer for ghost dodder; if it is a mutant beast, it will release the seeds and bring the mutant beast to other places to take root and sprout.

Zhang Qiuyi understood: "So when the crossbow arrow is fired, due to the thrust, Guidoucu will pop up spikes backwards to communicate with the supernatural field of Chihuan Bird Feathers; and when the prey is shot, Guidoucu will pop up spikes forwards due to the resistance, and the two supernatural field of ice and fire have contact channels, and an explosion occurs."

"The little girl is so smart! She is so smart!" Old Feng nodded repeatedly: "That's it!"

"This idea is wonderful! A good way to make a big fortune!" Tang Ning couldn't help but scream and pushed the fish maw over: "Uncle Feng, I also have a friend who loves to design supernatural weapons. He is the one who designed the bone knife and leather armor for me."

"I've given this to you, so there's no need to contribute points." Tang Ning pushed the bottle of fish bladder over: "If it works, use this drawing, as well as the relevant derivation procedures and calculation formulas below, how about it?"

There is actually nothing to tell just a design idea drawing. There will definitely be a huge and detailed design and calculation process below. Tang Ning is not a layman in the design of superpower weapons now. Although Hongniao or Tang Lujin should have this ability to use design ideas and drawings to deduce manufacturing drawings, it also requires complicated calculation and experimentation.

So Tang Ning felt that this exchange was not a loss.

"Xiao Tang is very brave in doing things!" Old Feng was very happy: "It's changed! But let's say it first. If the adhesive is ineffective, there is nothing we can do."

"But no matter whether it succeeds or fails, Xiao Tang, and Xiao Zhang, two kids, I, Lao Feng, have settled it!"

The poisonous Eucommia is already the most compatible material for various attributes, but due to the influence of the effects of growth and restraint, it seems that Lao Feng still encountered difficulties in glueing all the materials together.

Even though the strange fish's fish bladder has a huge bonus in fusion of superpower materials, Lao Feng still dared not make a guarantee and would definitely succeed before the result came out.

But such a large bottle of fish bladder was enough for experiments. Because of this, Lao Feng took Tang Ning's courage even higher.

Tang Ning means that if the experiment fails, even if the bottle of fish bladder is given to Lao Feng for free, he will not accept a contribution point; if it is successful, he will believe that Lao Feng's character will truthfully fulfill the oral agreement transaction.

Feng Jieru also smiled and said, "Xiao Tang is good. Come on, I will collect these little pieces first and transfer the contribution value to you. As for the remaining ones..."

"Please trouble Uncle Feng if you have the rest." Tang Ning said: "Let it be here for a while, and it's okay to take action slowly, and I'm not in a hurry."
Chapter completed!