13 tons of graphene, Zhang Li naturally can't eat it.

Of course, he also didn't believe that St. Regis had so much graphene.

For more than ten years, the amount of graphene produced in the world is less than one ton, and your 13 tons is also enough to show off.

"Okay. Jian Pengfei smiled softly, did not force an explanation, but changed the topic and said: "Then Mr. Zhang, you can also tell me more specifically, how much graphene you want." ”

Zhang Li thought for a while and reported a number: "1 kilogram, is there one?"

"Yes. ”

"What about the price?"

"3,000 yuan per gram, 3 million per kilogram. ”

"You let me discuss it here, and then I'll give you an answer, okay?"

"No problem. ”

After hanging up the phone, Zhang Li looked at Meng Nanfeng next to him and said, "Academician Meng, the other party said that there is 1 kilogram of graphene, and the price is 3,000 yuan per gram, what do you think?"

Meng Nanfeng thought for a while and replied: "In terms of price, it is a little expensive, and the price of kilogram-level graphene monocrystalline wafers will not exceed 2,000 yuan per gram."

However, this is the price of less than 4 inches, and the size of 1 meter is naturally another offer.

1 kilogram of single-layer graphene, excluding loss, can be used to make 1 million double-layer graphene, and the strength and hardness of double-layer graphene are ranked first in the material industry, and the stiffness is also very good.

That is to say, after this size of double-layer graphene is restructured and isolated and covered with multiple layers, it can be made into at least 10,000 sets of the world's top nano body armor or bulletproof glass, which can not even penetrate large-caliber sniper rifles, and a set sells for tens of thousands of yuan, which can be said to be in short supply in some war-torn areas in Africa and the West.

Of course, in addition to making top-level nano-bulletproof products, many other products can be made, but in any case, if it works well, the derivative value of this kilogram of single-layer graphene can exceed 100 million yuan, and you can start it. ”

Zhang Li's eyes flashed slightly: "In other words, if I buy it for three million, I will make a sure profit, right?"

Meng Nanfeng bowed: "You can think so, but you have to be careful that this is a scam of St. Regis, with the current height of science and technology, it is impossible for any company in the world to achieve this kind of output, 1 kilogram of 1 meter level of single-layer graphene, too much......"

Zhang Li touched his chin and said: "Fraud prevention, this is simple, when the goods are delivered, let's directly move the instrument over for inspection, then it won't work?"

"Uh......" Meng Nanfeng was stunned and said with a wry smile: "I'm afraid it will take a lot of time." ”

"You don't have to test all of them, just randomly select them, as long as there are no problems with the randomly selected and tested data, there is basically no big problem. ”

"That's right. ”

Agreeing on the plan, Zhang Li called Jian Peng back to the past and finalized the plan.

1 kg of single-layer graphene with a specific surface area of 2630 square meters/g, a total of 3 million yuan!

In addition, since real gold is not afraid of fire, when Zhang Li proposed that he set a trading location, Jian Pengfei did not hesitate and agreed directly.

Therefore, at half past two in the afternoon, Jian Pengfei took a key from Jiang Bo's hand, went to the dust-free warehouse to take 1 kilogram of graphene, and then quickly took people to the carbon nano engineering laboratory invested by Keyuan Company.

1 kilogram of graphene is naturally not much, but with the addition of substrate materials and sealing materials, it is enough for more than 100 kilograms.

A yellow, sealed container containing graphene was moved to the laboratory trading site under the handling of two St. Regis employees.

Jian Pengfei pointed to the container and said with a smile: "Mr. Zhang, 1 kilogram of graphene, well, it's all here, you can open the box and inspect the goods, but I want to remind you that the best place to open the box is to choose a dust-free area." ”

"Okay, then please wait a minute, and I'll let someone inspect the goods. Zhang Li nodded, turned around and said a few words to Meng Nanfeng, and then let several laboratory personnel carry the container into the testing center.

Soon, driven by Meng Nanfeng, the personnel of the entire laboratory stopped their work and began to randomly select and test the graphene in the container.

And Jian Pengfei followed Zhang Li to the reception room to drink tea.

Minutes and seconds passed.

More than an hour later, Meng Nanfeng came to the reception room with a look of disbelief in his hand.

"Academician Meng, what are the test results?" Zhang Li hurriedly got up and asked.

Meng Nanfeng shook his head, his expression was very serious: "No......"

"Isn't it right?" Zhang Li's brows furrowed when he heard this, but then Meng Nanfeng's words made him stunned again.

"Mr. Jian, the size of the graphene single crystal wafer you gave is not consistent with what was said in advance, the size of 10mX10m, this, how can this be, how did you make it?"

Meng Nanfeng had red eyes, like a long-hungry tiger, staring at Jian Pengfei deadly.

Jian Pengfei put down Erlang's legs and said with a smile: "It means that this kind of 10-meter-level, 100-square-meter graphene wafer, are you still not satisfied?"

"10-meter-level graphene ???" Zhang Li was confused: "No, Academician Meng, what the hell is going on?"

Meng Nanfeng took two deep breaths and replied in a deep voice: "The batch of graphene just now is not 1 meter level, it is 10 meter level, and the area of each one is 100 square meters......

"This ...... 100 square meters of graphene?...... Impossible!" Zhang Li denied almost without thinking.

Meng Nanfeng said: "Before I tested it, I didn't believe that there was a graphene of this size in the world, but when we randomly cut 100 pieces of graphene at random, we tested it."

The results obtained...... It is exactly the same as the data of the previous two standard single-layer graphene. ”

Zhang Li frowned, still couldn't believe it, thought about it for a long time, and finally thought of a key: "Could it be that there is a bug in the detection instrument?"

However, after saying this, Zhang Li found that Meng Nanfeng looked at him like a fool, and he knew that he had said the wrong thing.

I only heard Meng Nanfeng shake his head and said: "It's not the problem of the instrument, the instrument is fine, and besides, more than a dozen instruments, it is impossible for all of them to fail." ”

"But how is this possible, the 10-meter-level graphene film ......" Zhang Li looked at Jian Pengfei with an exaggerated expression: "Mr. Jian, how did you do it?

Jian Pengfei had already thought of his words, and said lightly: "How it was made, in fact, I don't know, and even if I know, do you two think that this kind of trade secret, will I say it?"

Okay, since the inspection has shown that there is no problem, then why did you call me for the rest of the money, Mr. Zhang?"

Zhang Li glanced at Meng Nanfeng, and when he saw the latter nodding slightly, he suppressed many emotions in his heart and said with a smile: "I'll call someone to transfer the money to you, don't worry, everyone is a businessman with a head and a face, and they won't default on their accounts." ”

......