Rebirth 78, the beginning of the marriage was broken off by the female educated youth

"What did you say? What the hell? Anti-counterfeiting...mark?"

After hearing Li Xiangnan's words, Guo Qian was stunned for a few seconds and didn't understand what Li Xiangnan meant.

Of course, I had never heard of the anti-counterfeiting mark that Li Xiangnan mentioned.

However, at this moment, Li Xiangnan revealed the wisdom and means from the future. He smiled and placed the broken inner and outer lining brackets on the table together with the brackets from the machine repair shop.

"Captain Guo, looking at it this way, I really can't tell the difference between these two things from the outside! Don't they look exactly the same?"

Guo Qian nodded as if possessed by a ghost, and he and the other police officers in the room leaned over to look at the table.

No matter whether it is the stent taken out of Qiu Dazhi's body or the stent from the machine repair shop, if you don't carefully distinguish them from the appearance, you really can't tell which one is produced by the machine repair shop!

If the bracket on one side was not cracked, they would be the same product, the same thing!

"But, there's something very special inside! Look here!" Li Xiangnan once again disassembled the stainless steel bracket of the machine repair shop, pointed to the string of numbers and letters inside and said with a smile: "This is the anti-counterfeiting mark I just mentioned. Look at this bracket again, there's nothing there at all!"

"Let me have a look!" A police officer nearby immediately raised his hand to the light for inspection. Upon closer inspection, he saw a string of small numbers embedded inside the extended part of the bracket. If you don't look carefully, you can't find it at all.

"790119...W...X, what does this mean? Captain Guo, take a look!"

As the police officer spoke, he handed the stent to Guo Qian in confusion.

Guo Qian also followed his movements and took a closer look at it under the lamp.

There was indeed a string of numbers and letters in the stent that Qin Ruobai had just given, but the inside of the heart stent taken out of Qiu Dazhi's body was smooth and had no markings!

His eyes lit up, and he suddenly realized, "Advisor Li, is this what you said...the anti-counterfeiting mark of the heart stent in the machine repair factory?"

"That's right!" Li Xiangnan nodded, in a good mood. After sitting down leisurely, he smiled and said, "So, the case is very clear! There is no problem with the medical skills of Dr. Dong Fei from the Fourth Hospital. The problem lies with this unqualified product! There are big problems with its steel hardness and support for blood vessels. See this tube? It didn't stretch at all, and it didn't relax and dilate Qiu Dazhi's blood vessels at all. Instead, it aggravated the blockage of his coronary arteries, causing Qiu Dazhi to suffer an acute myocardial infarction! This is the real cause of his death!"

He picked up the broken bracket on the table and sneered, "This thing was not produced by our machine repair factory at all!"

"..."

Guo Qian withdrew his gaze from the tripod in his hand, exchanged glances with the police officers in the room, and was so excited that he couldn't help slapping his thigh.

"Oh my goodness! I knew it was like this! The Qiu family is really wrongly accusing your machine repair factory! It's really a life-threatening situation. Fortunately, Qiu Dazhi was autopsied. Otherwise, after this series of investigations, the target would be directly pointed at the machine repair factory, saying that there is a problem with your products. That would be terrible!"

Li Xiangnan smiled and said, "The innocent will be innocent. I believe Director Liu thinks so too!"

"But, Xiao Li, what do the numbers and letters on the inner wall of this bracket mean?" Guo Qian asked hurriedly.

"Captain Guo, this is a business secret!" Li Xiangnan smiled mysteriously and chose to keep silent.

This is indeed a trade secret.

In fact, when he first started producing heart stents, Li Xiangnan was already cautious.

If such excellent medical equipment can become popular in Yanjing, it will surely become popular throughout the country.

There will inevitably be people who are jealous, and there will inevitably be people who will follow suit.

This thing doesn't seem to require very high technical skills, but the difficult part is the technical requirements for the doctor.

But there are people who are obsessed with money and put a lot of thought into heart stents.

Therefore, when each set of heart stent leaves the factory, Li Xiangnan makes an additional set of requirements on the production line.

That is, on the inner lining of the brackets of the same batch, workers are asked to use pliers to carve the production date and the initials of the casting workers at that time.

When leaving the factory, they are marked with serial numbers in chronological order, and when sold, the destination of each batch number is carefully recorded in the account book.

In other words, every batch of heart stents can be traced back to the workers who produced them.

On the contrary, every batch of heart stents coming off the production line can eventually find a destination!

For example, if a heart stent is removed from Qiu Dazhi's body, this method can be used to trace the source to find out whether it was the device sold by the machine repair shop, so as to smoothly hold the person responsible.

On the other hand, the machine repair shop and Nanyi Medical Equipment Center can also find the serial number of the heart stents supplied to the Fourth Hospital through the sales list to see if they are their own products.

There is no way to fake this thing. If any link doesn't match, it will be useless!

Of course, Li Xiangnan is not afraid of someone simulating the engraving of the number.

Because the dates, times, shifts, production workers and fitter numbers are different, these are all random and cannot be copied.

No two sets of heart stents are exactly the same; each set is unique in the world.

If an identical stent appears out there but the surgery was done in a different location, it must be a fake!

This is the wisdom of taking precautions before problems arise and preparing for a rainy day!

"Damn it, I'm really convinced! Xiao Li, anyone who goes against you is asking for trouble! Who could have thought of this? I think those workers who imitated your brackets probably wouldn't understand their meaning even if they saw your numbers, so they naturally couldn't copy your things!"

Guo Qian patted Li Xiangnan's shoulder heavily and said with a smile: "You really pay attention to details when doing things!"

"Captain Guo!" Li Xiangnan also laughed softly, "Let's follow the clues! This thing can appear on the operating table of the Fourth Hospital. I don't think one person can do it! Now it has killed someone, this matter is not a small matter!"

"Of course!" Guo Qian was also filled with righteous indignation, and slapped the table. "What kind of dirty money is this? It's a life-threatening thing, and you dare to think about it! It's really lawless! Xiao Lou, go interrogate Dong Fei! Let's go!"

Guo Qian quickly prepared to go out, then stuck his head back and said, "Xiao Li, thank you! You and Director Liu can go now. I will ask you for help if I have any questions later. Don't leave Yanjing for the time being!"

"Got it!" Li Xiangnan nodded and slowly packed up his cigarette box. Seeing the two young men who were sorting out the transcripts looking at him aggressively, he smiled and asked, "What's wrong?"

"Advisor Li, everyone in the bureau said you were very smart and could predict the future. We just graduated from the police academy and didn't believe it at first!"

Li Xiangnan smiled and spread his hands: "What about now?"

"Now that I've witnessed with my own eyes how you resolved a crisis, I realized that this is how you've always done things! Perfect! I really admire you!" The two young men stood in awe.

"What are you doing in middle school!" Li Xiangnan laughed, flicked the dust off his body, and walked out.

Qin Ruobai and Song Yi were waiting anxiously at the door.

"Xiangnan, I heard from Captain Guo that there has been any progress?" Qin Ruobai hurried forward.

"It's good to have made some progress!" Li Xiangnan nodded to her, then looked at Song Yi and said helplessly: "But the current situation is that someone is chasing us!"

Song Yi's eyes flashed with a dangerous light: "Are you saying... someone set up a trap for us today?"

"Yes, he used two tricks to steal and kill us. This chess player is well versed in military tactics!"

Li Xiangnan smiled deeply and looked at the darkness in front of the Public Security Building.

Even a rabbit will bite when it gets angry.