Yes, the performance of this gearbox is very good, the overall parameters are slightly higher than other domestic gearboxes, in previous years have never seen such a good performance of the gearbox, it should be a new product of a large domestic factory. The old expert said.

"New product?" The old man with high glasses suddenly became interested, and then asked, "Where is the gearbox of this car numbered 112?" ”

"It's on the finished table in front of me. The old expert pointed with his hand to the platform where the gearbox sample was placed in front of him.

The next moment, the two walked over together.

"Is this the gearbox?" said the old man with height glasses as he came to a gearbox with a 112 number hanging on it.

"That's right, this one. The old expert nodded.

"Make shape...... It's actually a design with visible oil volume, and this is the first time I've seen it in China. The old man with high glasses carefully observed the gearbox of the car, and when he turned the gearbox up, he was surprised to find that the edge of the gearbox housing was marked with a series of steel stamps, and then read: "LT4J1...... 4-speed manual transmission...... But what does LT mean? Is it an abbreviation for their manufacturer?"

"This is not very clear, the list of manufacturers corresponding to the number is in the hands of Vice Minister Chen, and no one knows before the selection results are announced. The old expert shook his head and said.

"Hmm. The old man wearing deep glasses nodded, and then said: "Then it seems that if there is no accident, this gearbox should be a gold medal product......

......

Duan Yun has been studying his computer for the past two days, and after adding some code programs, Duan Yun can already skillfully use the original CAD software on the computer to design circuit diagrams.

Anti-piracy is still a top priority for Duanyun's design of car radios and new subwoofer sounds.

Some primitive and simple anti-theft methods are no longer suitable for Duan Yun's new product development, in order to design the technical threshold, Duan Yun has added some integrated circuits.

These circuits designed by Duan Yun do not need some expensive integrated chips, and some relatively cheap chips sold internationally can be used to make its speaker equipment.

As for the channel for buying chips, Duan Yun does not plan to buy it from Gao Lei this time, but plans to buy it from Xiamen Yuanfang Group Company.

Last time, when Duan Yun went to Xiamen Yuanfang Company to chat with the sales manager, he learned that their company can purchase chips, and judging from the quotation table given to Duan Yun before, the price is not high, and it is even much cheaper than domestic chips, which is also the reason why Duan Yun decided to use a large number of integrated circuits in new products.

In addition to designing circuits, Duan Yun also went to the workshop more diligently in the past two days, and after synthesizing the design opinions of Cao Dong Cui Lin and others, Duan Yun quickly designed the outline drawings of two sets of subwoofer speakers.

Taking into account the aesthetic situation of the Chinese people,There are two sets of schemes in the upper section of the cloud,A set of drawings is mainly based on the traditional appearance of thick, stable and full of texture,This kind of speaker is suitable for placing at home,It looks tall and atmospheric。

Duan Yun's other set of design solutions is for some young people, the design of the color variety, full of contemporary popular factors of the mini pocket small speaker, can be handheld, can also be placed on bicycles, motorcycles and cars, fashionable and portable is the direction of Duan Yun's design.

In the design of the pendant decoration of this set of speakers,Duan Yun also went to Changsaka Middle School to find an art teacher,Let the art teacher draw drawings according to his ideas,Duan Yun also gave the art teacher a good remuneration。

On the exterior of the metal nameplate, Duan Yun is using copper and stainless steel sheets to be manually hammered out according to the drawings, because the pattern is more complex, there are eagles, skulls, and gun flowers, this is a handicraft work, ordinary people can't do it, so Duan Yun found a few craftsmen who make gold and silver jewelry in the city, and ordered it from them after negotiating the price.

Duan Yun is actually not good at the work of appearance design, but he understands that civilian products are not better than mechanical products as long as the leather is durable, and the beauty of civilian products is very important, and it is also the first impression to customers, so Duan Yun must put a lot of thought into the production and packaging of product appearance.

Looking at the current domestic market of electrical appliances and other electronic equipment, basically do not pay much attention to the appearance and packaging, as long as the quality is reliable, so that many electrical products in this era are very rough and rustic.

At 10:30 a.m. on Sunday, Duan Yun drove to Hongqi Square outside the west gate of the city, and according to the agreement, he would meet Li Caitou today.

Before he finished smoking a cigarette, Duan Yun saw Li Caitou's motorcycle coming towards him from a distance, and behind his motorcycle there was an old man wearing a gray tunic with gray hair.

"Manager Duan!" Li Caitou also saw Duan Yun at this time, and immediately greeted Duan Yun quickly after getting out of the car.

And the old man in the back of the car also followed.

"This is the Chief Engineer Qin of your factory that you told me about earlier, right?" Duan Yun asked Li Caitou.

"Yes, he is the chief engineer of our factory's technical master, Qin. Li Caitou introduced with a smile.

"Hello Chief Engineer Qin!" Duan Yun heard this, and immediately stepped forward with a smile on his face to shake hands with the white-haired old man.

"Ah, hello!" The old man, who was called Chief Engineer Qin, looked a little cramped, and after shaking Duan Yun's hand gently, he said: "Thank you very much for the microelectronics technology book you gave me, the two of us have never known each other before, I read that this book is quite expensive, I can't take your things for nothing, so I want to buy this book, I have brought the money......"

Chief Engineer Qin said, and he had to take the money out of his pocket.

"Chief Engineer Qin, I said that the book was given to you, what money do you give me. Duan Yun said with a smile when he saw this.

"That's not going to work! I can't take your things for nothing. Chief Engineer Qin's head shook like a wave drum, and he had to give Duan Yun money.

"Okay, since Chief Engineer Qin has to give me money for the book, then give me 18 German marks, this is what I bought back with foreign exchange, and it is reasonable to collect your foreign exchange, or you can simply return the book to me." Duan Yun saw that the old man's temper was a little stubborn, so he raised his eyebrows and said.

"This ......" Sure enough, hearing Duan Yun say this, Chief Engineer Qin was stunned for a moment.

"Hehe, just kidding you, I've never been in the habit of asking for anything back. Duan Yun smiled, and then said to Chief Engineer Qin: "I think this is good, if you really want to repay me, then how about having lunch with me? ”

"Eat?" Chief Engineer Qin was stunned when he heard this.

"Yes, as long as Chief Engineer Qin agrees to have a meal with me, I will give you this kind of technical tool book in the future. Duan Yun said with a smile.

"That...... Yes. Chief Engineer Qin hesitated for a moment, but finally nodded and agreed.