"Lao Li, he must be bragging!" Leader Qin was full of disbelief: "Our current steel helmet is made of 232 bulletproof steel, and the weight has reached two and a half catties, and it can only protect against fragments of shells and grenades, and it can't prevent rifle bullets at all. ”

The stronger the protection, the greater the weight, and the bullet-proof steel helmet, can the fighters wear it?

"That's right, even if you can block bullets, what's the use? The impact of the rifle bullet is so great, even if the steel helmet blocks it, the neck will break under the huge impact force! Another voice spoke: "This thing reminds me of how bold people were and how productive the land was." ”

"No, no, it's not pompous." Li Runzhu said: "If our shoes are not lined with steel plates, they can be puncture-proof, and using this material to make helmets can of course also be bulletproof!" I believe in Qin Feng, he will definitely be able to get it for us! ”

"Or that Qin Feng from Pingwang Town?" Leader Qin smiled: "Okay, then let's take a look then!" If it could really block bullets... By the way, did he say he could block any bullets? Is it a pistol bullet or a rifle round? ”

Different bullets have different penetration, the power of pistol bullets is very small, and it is easiest to be blocked, if you want to talk about rifle bullets... There has never been a helmet in the world that can block rifle bullets! Just kidding, the turtle shell isn't that hard.

"56 punches of bullets, 50 meters of direct fire." Li Runzhu said.

The eyes of those present widened.

56 punches, 50 meters of direct shot!

Such guns, at such distances, are most often encountered in the south, and if the fighters are equipped with such helmets ... Leader Yang took a deep breath: "If that Qin Feng can develop this kind of helmet, then my old Yang will back him up!" That batch of bullets in stock, you can also let him help us sell them! But if he's going to brag..."

"Leader Yang, don't worry, if he brags, my Lao Li will not let him go!"

There is no joke in the army, since Qin Feng promised that kind of performance, he has to do it, otherwise...

Li Runzhu believed Qin Feng, after all, he was still wearing those boots on his feet, comfortable and soft, he asked his military factories, none of them could make such an effect! That Qin Feng really has a few brushes!

What's more, Qin Feng uses imported machinery and equipment!

When the equipment arrives, check it out for yourself!

On September 1st, the beginning of the school season, from elementary school to university, all started on this day, but Qin Feng, as a senior student, did not leave his hometown, and this morning, he stood at the door of the war readiness warehouse and was stunned!

The temperature in the mountains is a little cold, but Qin Feng's heart is hot, he is waiting for the arrival of a new batch of foreign garbage!

Arrived at the port last night, Qin Feng planned to drive to the port this morning to pick up the goods and go through the formalities, but he didn't expect to make a phone call in the morning, and he had already unloaded his container and sent it directly to the team!

The voice on the phone was very enthusiastic, so that Qin Feng couldn't help but sigh with the benefits of identity and background, doing business in these years really has to do something to do with it.

The roar of the engine sounded in the valley, and the convoy finally drove over, and since it was the last convoy that delivered the goods, the drivers also remembered the route, and there were no mistakes along the way, and they drove directly to the combat warehouse.

However, when the convoy stopped on the side of the road, Qin Feng was taken aback when he saw the person jumping from the first car.

"Mr. Imai Castle, why are you here?"

The Pacific Trading Company is in the dark, the rubber shoe factory and the instant noodle factory are in the dark, Qin Feng is also ready to withdraw at any time, but he didn't expect that this Imai City is cunning and big, and he actually found this side with the team!

"Qin, there is a lot of foreign garbage this time, I'm afraid you won't be able to deal with it, so come along." Imai Castle said.

"My friend, this is a bit difficult, do you know what this place is?" Qin Feng pointed to the square words at the gate: "Combat readiness warehouse, the territory of the army, idlers are not allowed to enter." ”

"But, this foreign garbage..."

"Mr. Imai Castle, you also know that it is foreign garbage, so we have to deal with it first, and by the way, we will complete all the formalities, and in a few days, we will talk in detail."

"Okay." Imai Cheng nodded: "I really didn't expect that you actually have such a big background in the east, and these things can be directly put in the army's combat readiness warehouse!" ”

"You're a foreigner, so you might as well get out of here to avoid problems." After Qin Feng finished speaking, he shouted inside: "Da Liu, Da Liu!" Drive my Santana and send this guest back! ”

Zhao Jiao is still learning to drive, Qin Feng is not worried that she will drive alone to deliver guests, Da Liu used to drive a tractor before becoming a soldier, Qin Feng trained him briefly and temporarily acted as a driver.

Da Liu was excited, took the car key from Qin Feng's hand, and ran to drive.

Watching Santana leave, Zhao Jiao was a little curious: "Brother Feng, should we leave him here for a meal?" ”

"Eat? If he sees our bucket instant noodles, or self-heating instant noodles, he won't have to learn them. You can't let him stay here too long. Qin Feng said: "The little devils are very bad. ”

Looking at the unloading of the container, Zhao Jiao was a little stunned, very bad? And these devices...

"Brother Feng, will they do anything on the equipment?"

"It's not like that, it's not a one-shot deal, if they dare to cheat us on these machines, then they don't want qualified coffee beans in the future!" Qin Feng said: "Some of them are busy next, these are all loose pieces, I have to assemble them." ”

"Brother Feng, I'll help you!"

"No need, if you have time, organize Team Leader Hu and them to assemble the TV and cassette recorder."

In addition to the machinery and equipment, the rest of the electronic products are still the same models as before, and the big guys are familiar with the road.

In the afternoon, the assembly officially began!

In fact, the domestic research on this material is not too late, from 72 years to start the development, in 81 years of the aramid 1313 synthesis, 85 years to complete the identification of aramid 1414, but these are synthesized in the laboratory, want to mass production or far away.

In the case of aramid 1414, as long as polyterephthalic acid terephthalate chloride and m-phenylenediamine are added to the reaction vessel in a certain molar ratio in the laboratory, and then the reaction is stirred and heated at appropriate temperatures. The two reactants undergo a polycondensation reaction to form polymer chains. The polymer chain is gradually lengthened, and aramid 1414 fibers are formed.

However, how to control this reaction, and how to spin the aramid 1414 fiber formed?

As long as Qin Feng assembles these twelve sets of production equipment, he can put them into industrial production! Although the annual output is only a few hundred tons, it is definitely the first set in China!