Zuo Longxin led Xiao Nan all the way to the west for more than ten minutes, suddenly slowed down and turned on the right turn signal, Xiao Nan took a look at the right side of the road, only to see that there was a large area that was obviously a newly built factory, near the roadside of the high-rise office building, hanging a huge billboard, with the LOGO of Zongxin Group, which surprised Xiao Nan.

Although most of Xiao Nan and her teammates friends play imported large-displacement locomotives, but often go to Pengpeng where to mix domestic cars have seen a lot, and over the years through the subscription of locomotive magazines, for several major domestic locomotive manufacturers also have a general understanding, like Zongxin Group, which ranks among the top five old brand locomotive private enterprises in the same industry in China, Xiao Nan can't have heard its name.

It turns out that Zuo Longxin is working here, no wonder he has so much research on locomotives, but what kind of work does he do here? Listen to his tone is quite like an engineer responsible for researching new models, but his locomotive technology is so good, but more like a professional racing driver, remember Zongxin Group seems to have its own professional team, is it not Zuo Longxin in Zongxin Group's professional team? However, is it necessary for professional drivers to deal with CNC machine tools all day long?

Just when Xiao Nan was thinking about Zuo Longxin's identity, the two of them had already come to the factory gate of Zongxin Group one after the other, and looking inside the factory through the gate, there were still some people in work clothes walking around, and the lazy atmosphere near the Spring Festival did not seem to be particularly strong.

The gate of the factory is a common stainless steel automatic retractable door at the entrance of the government unit, but this gate is two or three times wider than the common one, presumably to facilitate the entry and exit of trucks pulling goods, and now this door is closed and impassable. On the right, near the guard's room, there is a much narrower door, also self-retracting in stainless steel, which is now closed. The security guard in the guard room saw the two locomotives driving over and quickly stood up, looking at Xiao Nan and Zuo Longxin through the window glass.

Zuo Longxin didn't lift the mask while wearing a helmet, and it was difficult for others to see his face, but the security guard just glanced at him, and didn't ask them for work permits or other documents, so he pressed the button to put the small door away and let the two of them drive directly into the factory.

The factory was very clean and tidy, Zuo Longxin drove his fluorescent orange locomotive without a trademark to lead the way in front, and took Xiao Nan straight to the depths of the factory. Along the way, Xiao Nan saw that there were tall factories on both sides of the road, and the rows of neat factories were uniformly painted with blue roofs and white walls, and all of them were installed with closed centralized ventilation equipment, so the doors of these factories were all closed, and the situation inside could not be seen from the outside, and the sound of mechanical operation seemed to be faintly heard inside.

Walked forward for a while, passing through a wide field isolated by barbed wire, from a distance, Xiao Nan thought it was a large open-air sports field, and was secretly wondering why the factory spent land resources to build such a sports field, and when their locomotive had driven to the front, Xiao Nan found that it was a large test site, the black asphalt road in the field like sheep intestines coiled around the ground, some sections of the road are also specially built into undulating terrain, and there are some water holes and very high steep bridges, which are obviously used to simulate various road conditions。

The whole test site is rectangular, the outermost two long sides near the barbed wire fence are completely straight, and there are waste tires along the road to form a buffer protection belt, Xiao Nan estimates that if the large displacement locomotive is upgraded by the male, it should be able to run more than 300 kilometers per hour on this straight road.

Zongxin Group is really wealthy, how much does it cost to test a test site of this scale...... Xiao Nan sighed secretly in her heart.

I ran for a long time on this road, and from time to time I would encounter a forklift carrying wooden boxes and a battery flatbed truck full of parts passing by, and finally Zuo Longxin took Xiao Nan to run to the edge of the factory in front of a three-story building before stopping, and there was a striking sign hanging upstairs, with the words "Second Development Research Center" written on it. At the entrance of the first floor, an aluminum alloy roller shutter was tightly closed, Zuo Longxin did not get out of the car, took out the remote control from his pocket and pressed it, the roller shutter was automatically put away, and the two drove the locomotive directly inside.

Zuo Longxin parked the car and turned on the light switch on the wall, and when the light came on, Xiao Nan found himself in a place similar to a machine modification workshop, whether it was the neatly placed various tools and parts on the shelves, or the large and small workbench lifting platforms placed against the wall, or the intricate but never messy various pipelines and cables hanging overhead, in particular, the smell of mixed engine oil and gasoline in the air made Xiao Nan feel particularly familiar and cordial, as if he had returned to Pengpeng's locomotive maintenance and modification shop, but the scale here was more than dozens of times larger than that of Peng Peng, There are many more equipment than over there, except for the ones that Xiao Nan can name, such as maintenance instruments such as four-cylinder balancers, or common equipment such as drilling machines and argon arc welding machines, there are many things she hasn't even seen, anyway, they are all complex and sophisticated, and they look very technological, but I don't know what they are used for.

Xiao Nan stood in the middle of these devices and looked around here and there, just like Grandma Liu had entered the Grand View Garden, her eyes were glazed. Zuo Longxin put his hands in his trouser pockets, looked at Xiao Nan's novel and excited appearance triumphantly, and couldn't help laughing.

"Uh...... Xiao Nan, can I call you that?" he asked tentatively. "Uh-huh...... What's wrong?" Xiao Nan did not object.

"Look, that big guy over there......" Zuo Longxin pointed to a large equipment larger than a van against the wall with his hand: "This is the five-axis linkage CNC machining center I told you, from German DMG, a little older, eliminated from the CNC workshop in our factory, but the accuracy is still not said, the Germans are really good at this thing, much more powerful than small Japan......"

"Hmm......" Xiao Nan nodded. She knew that this thing was very powerful, it could process extremely complex and delicate parts, and it had high requirements for programming, which ordinary mechanics could not play. "Will you use this?"

"Hey, hey, it's just a processing center...... Zuo Longxin smiled: "I won't use ......" "Poof...... You won't be able to do it, what are you proud of...... "Xiao Nan is sweating."

"Well, it's okay if I don't use it, anyway, there are skilled masters here who can use it. As for me......" Zuo Longxin pointed his finger at his head: "I just need to tell the engineer what I think......"

"Oh......" Xiao Nan nodded, a little disappointed, originally wanted Zuo Longxin to show her how powerful the five-axis machining center is, but she didn't expect him to be a layman.

"Come, Xiao Nan, I'll show you something interesting. Zuo Longxin led Xiao Nan to the other side, only to see a not very big machine placed on a platform, covered with a plexiglass cover on the outside, looking inside, it was a bit like an inkjet printer, but it was definitely not the same thing, because it did not have an ink cartridge installed, but a bundle of red plastic wires.

"What is this?" Xiao Nan was still as curious as ever. "This is a 3D printer. Zuo Longxin winked at Xiao Nan: "Have you heard of this thing?"

"I know, you can print plastic parts directly, right?" Xiao Nan circled around the machine, but didn't see why. "Why do you use this? Directly print car parts, polymer materials can't be used directly, even if they are printed?"

"It can't be used directly, but we can use it to make scale models of parts and components, and then study the assembly process of each part and what needs to be improved. Zuo Longxin explained while turning on the power of the printer. "There are also some plastic parts with special shapes that we can print out directly......"

The machine was powered on, Zuo Longxin turned on the computer on the console next to him, called up a 3D model of a girl's headband from the special software interface, and used the printed instructions, and the printhead of the 3D printer immediately began to run busily.

"I'll give you a greeting later......" he said with a smile, "but the speed of this machine is really not flattering, let's go see something else first......"

Zuo Longxin led Xiao Nan around the entire floor, pointed out various advanced instruments and equipment to Xiao Nan, and then led her to the innermost position, there is a row of four working platforms with lifting functions, and there are four motorcycles parked on the platform that are not fully assembled, Xiao Nan noticed that one of the four cars is exactly the same as the sports locomotive that Zuo Longxin has been driving, and the one next to the platform is a middleweight street car that uses the same in-line four-cylinder engine.

Going further, the other two locomotives on the platform attracted Xiao Nan's attention, because although the two cars were street car style and off-road style, the engines they used were the same V-twin water-cooled engine, and the appearance of this engine was somewhat different from the second-hand engine used on Xiao Nan's APE, but on the whole, there was not much difference.

"Have you noticed it too...... Zuo Longxin stroked the cylinder head of the engine that was still in the assembly state with his hand, and said to Xiao Nan proudly: "This is the final form of the sample engine installed on your car, the V-twin cylinder water-cooled 300CC engine, which is independently developed and produced by our factory after absorbing the technology from Italy, and has completely independent intellectual property rights." Together with the inline four-cylinder engine next to it, this engine will build the strategic product line of the latest generation of high-tech motorcycles of our Zongxin Group, compete for the high-end domestic motorcycle market, and enter the European and American ......"

Zuo Longxin said this, Xiao Nan next to her suddenly had a heartbeat, she keenly thought that Zhao Yuxuan had shown her some time ago The product promotion plan, although all the manufacturer names, specific product models and photos were deleted in the details, but the general publicity direction was completely tailored to these four new locomotives.

This world is really too small, Xiao Nan thought. No matter how resolute she was in rejecting Zhao Yuxuan, she still walked up to these new motorcycles after a big circle, can this be explained by mere coincidence?

Just when Xiao Nan sighed secretly, the 3D printer that had been busy in the distance finally stopped, Zuo Longxin hurriedly ran over, opened the cover of plexiglass, and took out a red headband from the inside, which not only has the embossed dark pattern of roses, but also a small bow at the ear, all of which are printed with red polymer consumables. Zuo Longxin walked over with this headband and gently handed it to Xiao Nan: "Na, this is the girl in my unit who printed it when she tested the machine, and I gave it to you as a souvenir~"

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