It's another Monday, today is the day when Xu Hongwen made an appointment to use the real room, he got up early in the morning and arrived at the school dormitory, and when he entered the dormitory, he found that Cheng Cheng came earlier than him, and Cheng Cheng also washed his sad face a few days ago.

Yesterday afternoon, Xu Hongwen took Cheng Cheng and his son to the Municipal Public Security Bureau, but I didn't expect Lu Congjun's words to be quite effective, Cheng Cheng's mother was soon released, Cheng Cheng's parents were very grateful to Xu Hongwen for his help, he explained at the time that there was no need to thank him, the main original country or the factory director who ran away was caught, otherwise it would be useless to ask someone to speak; Originally, Cheng Cheng's parents wanted to invite Xu Hongwen to have a meal when they went home, but Xu Hongwen, who didn't want to disturb Cheng Cheng and their family reunion, also declined!

Cheng Cheng, who was cleaning in the dormitory, saw Brother Wen coming over, and hurriedly smiled and said, "Brother Wen, I came so early, thank you for yesterday's incident!" ”

After Xu Hongwen entered the door, he smiled and said, "Hehe! If you say thank you, thank the people's police if you want to thank you, can the bad guys be released if they don't catch the good guys! ”

Cheng Cheng's heart is actually very grateful to Brother Wen, listening to the captain Lu said that he just came back from the field in the early morning, Brother Wen ran to the public security bureau early in the morning to ask him for help, Cheng Cheng really didn't expect Brother Wen to be so concerned about his mother's affairs, he Cheng Cheng Cheng has to remember this heart for a lifetime, Cheng Cheng, who has this kind of thought in his heart, still said: "Brother Wen, I still have to thank you, otherwise my mother wouldn't have come out so early!" ”

After entering the house and putting down his things, Xu Hongwen saw that Cheng Cheng was always thanking him, so he raised his hand and patted Cheng Cheng on the head, and said, "Cheng Cheng, you still don't treat me as a brother, if you still treat me as a brother, don't say these things again!" ”

Cheng Cheng saw Brother Wen coming over, and he didn't dodge it when he reacted a little slower, and Cheng Cheng, who was moved in his heart, scolded with a smile: "Brother Wen, who doesn't treat you as a brother, I said what I said to the air just now, so don't accept it!" ”

"Haha, that's pretty much it!" Seeing Cheng Cheng like this, Xu Hongwen was more comfortable, there was no need for the two brothers to be so angry, seeing Cheng Cheng sweeping the ground, Xu Hongwen pulled him and asked, "Do you have any important lessons today?" ”

"No, what's the matter?"

"I want to be a private person, I need an assistant!"

"Okay, what's the truth?"

"The technical improvement of light-emitting diodes is real!"

"Okay, but I haven't seen your actual plan, don't blame me for doing something wrong!"

"As long as you talk a lot, it's not that complicated, just do what I say when you do it!"

Xu Hongwen and Cheng Cheng, who took the materials, came to the real room, after entering the door, Xu Hongwen opened the main power switch, and the instruments and equipment in the semiconductor real room were almost piled up in the entire real room, and the equipment here Xu Hongwen and Cheng Cheng had operated many times, and for them, the preparation process of this diode was very simple.

The materials are complete, the process is not complicated, Xu Hongwen borrowed the real yàn room to make the work of LED work very smoothly, but in the adjustment of the light color delayed some time, it took two days for them to make more than 1,000 LEDs, there are white, red, green, yellow, warm white five common light colors, when these LEDs were made, Cheng Cheng, a master's student, was stunned, he had never seen a diode can emit such a bright light. And Cheng Cheng also heard Brother Wen say that this kind of LED is only a single crystal type, and if you make a polycrystalline LED, the brightness is higher, but the manufacturing process is relatively complex and time-consuming, so they didn't do it!

Xu Hongwen, who was busy in the real room, saw that the New Year was coming, and he also had a sense of urgency in his heart, he knew that there would be a world lighting exhibition in Xiangjiang after the year, and if he missed this lighting exhibition, the difficulty and cost of promoting LED lights would increase exponentially.

After coming out of the room, Xu Hongwen drew several drawings of the LED lamp shell, because aluminum is easy to process and has the characteristics of fast heat dissipation, Xu Hongwen spent a lot of money to find an aluminum product factory and asked them to speed up the production of the lamp shell.

At the same time, he also got a certificate to go to Xiangjiang, and all the Hong Kong dollars used in Xiangjiang were Hong Kong dollars, Xu Hongwen encountered some trouble when exchanging Hong Kong dollars, and the personal exchange limit for Hong Kong dollars in the bank was too small, so Xu Hongwen had no choice but to exchange some Hong Kong dollars at a high price on the black market.

After another two or three days, the aluminum products factory sent samples of lamp shells, Xu Hongwen saw that the process of making lamp shells was a little rough, and proposed some revisions to the technical staff of the factory, and asked their factory to do more meticulous work.

After arranging these, Xu Hongwen saw that Hongwu had practiced these days, and now he could repair the big brother alone, plus the problem analysis method and repair method given by Xu Hongwen, Xu Hongwen thought that Hongwu could fix most of the big brothers who had problems, and Xu Hongwen, who was in a hurry to go to Xiangjiang to do business, handed over the store to Hongwu to see, and explained what the problem was, and then used the new phone to contact.

Xu Hongwen once again got on the plane and flew to Xiangjiang, after the plane landed at Xiangjiang International Airport, Xu Hongwen, who was holding his luggage, found a fast hotel near the lighting exhibition, and Xu Hongwen left the hotel after putting down his things.

Take a taxi and get off at the exhibition building, the exhibition building is an industrial building in the seventies and eighties, the building is old and the exterior walls are a little blackened, you can't see the height of the upcoming exhibition here, you can still smell a freshly brushed lime smell in your nose, you can see that there is no special decoration in the building, the wall is newly painted snow-white, the huge exhibition hall is hot, and many workers are decorating the booth.

After Xu Hongwen, who entered the exhibition hall, asked someone where the management center was, he went to the management center office on the second floor.

"Hello! Is there anything wrong? ”

As soon as he entered the office of the management center, Xu Hongwen saw the front desk stand up and greet him, the beauty at the front desk looked very white, with a warm smile, Xu Hongwen stepped forward and said: "Beautiful girl, I came to rent a booth!" ”

The beautiful Xiao Zhen was reading a novel just now when she saw someone coming and quickly stood up and said hello, hearing that this person came to rent a booth, Xiao Zhen hurriedly came out of it and said happily: "Sir, welcome!" Please come with me into the reception room, and someone will greet you immediately! ”

Saying that, Xu Hongwen was led to a reception room, and after taking the hot coffee poured by the beautiful woman at the front desk, he sat down for a while, and saw a white-collar worker in his thirties and in a suit and leather shoes walked into the reception room, Xu Hongwen saw that when he opened the door, the white-collar worker was still smiling, as if he was frowning lightly when he saw him, and the smile on his face faded, only to hear the white-collar worker say very businesslikely:

"Hello, are you here to rent a booth?"

"Of course, I wouldn't be sitting here either!"

"I think you seem to be from the mainland, I have received several manufacturers from the mainland these days!"

Xu Hongwen glanced at his clothes, he was indeed a little rustic, he didn't care about his clothes, and he was too busy these days, so he really didn't have time to buy a good clothes, but he didn't expect to be despised here, Xu Hongwen didn't care, and said with a smile: "I'm from the mainland, and this has nothing to do with whether or not I participate in the exhibition!" ”

Happy New Year's Day!!