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Materials are extremely close to us or at least for an engineer. Basically, metal is divided into two categories, which are metal and nonmetal. In the metal section, we have non-ferrous metals with properties such as: "abrasion resistance, high melting" and ferrous metal with properties such as "ductility, high tensile and vulnerable rust ". Some examples of ferrous metals: copper, aluminum, bronze. And the ferrous metal party has two typical examples: cast iron and steel. Next, is nonmetal. Ceramic and plastic are two types of nonmetal. In particular, the plastic can be divided into two categories that are thermoplastic and thermoset. It is all about the material I know.

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To: robert123@gmail.com

From: ducdat@gmail.com

Topic: studying at university

Dear Robert,

I am Duc Dat. It has been a long time we don't see each other. Now I am a student at university. I am studying mechanical engineering technology at Hanoi University of Industry and studied for 4 years. After I graduated from school I can get a bachelor's degree and study for one more year to get an engineering degree. My main subjects are: machine details, CNC practice, cutting principles, CAD, CAE, engineering drawing.... My favorite subject is engineering drawing, because I like to design or draw every small part of a machine. The subject that is the hardest for me is philosophy. This subject has so many theory that really hard to remember. I have over 10 subjects each semester and I always try to schedule a reasonable time to study them all. When I study here I need some skills such as: time management, presentation skills and teamwork skills. I am trying my best to study myself because in university student don't have much time with teacher. I like my university pretty much because it has many memories of me with my friends and I can study a lot of things here to become a good engineer. And what about your study, Robert? Please email me to tell about your new life at university. I can't wait to know about it.

Your friend,
Dat

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From: ducdat@gmail.com

To: machine-workshop@gmail.com

Subject: Ordering machine tools

Dear sir: Robert

I’m a Mechanical Engineer from HJB Company. I was finding some mechanical tools then I saw your workshop's website. I surfed the web and I decided to write this email to order 2 CNC mill machines. My purpose of buying these machines is for cutting flat metal surfaces and improve the speed of the process. The item list is as follows:

| Item | Quantity | Ref No | Model | Total Price
| CNC Mill Machine | 2 | 67398 | 200 MC | $50.489

Please deliver to me no later than November 8, at : HJB company, 56 River Street, London, UK. I will pay in cash on delivery.

If something unexpected happens, feel free to contact me via this email or on 0123456 any time of the day.

Your sincerely,

Dat

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I am an inspector of Nissan company, I have seen the technical drawings of Honda company and see the real product.
First, the length is out of tolerance. According to the drawing, it should be 50.4 mm. However, it is only 50 mm +/- 0.25 mm in length. It is shorter than the maximum size in the drawing. There may be a problem with tight tolerances. Second, diameter is out of tolerance. According to the drawing, it should be 6.015 mm. However, it is only 6.010 +/- 0.004mm in diameter. It is smaller than the maximum size in the drawing. So, the actual size is smaller than the design size.
Please fix it or the product is rejected.

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I am working in Nissan company and we are having a big project. I am being assigned to work in a design team. This project consists of seven steps and I am working in the third step. Before that, I made the preliminary design and outline to send to my boss. Therefore, the job for me to complete is that I need a feasibility study for the rest of the week. It is necessary to check my designs and options narrow. After that, my team and others need to develop detailed designs of products. It will be expected to be done at the end of the month to meet customers.

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Hello I am Duc Dat , an engineer of Samsung Company. Today I would like to introduce to you a robot designed by me. It is named CT666, a robot shape similar to humans. It has a human-like structure, especially the main parts are: Control center, sensors, many internal axes, joints, limbs just like humans, and most especially this robot is equipped with artificial intelligence. The function of the robot CT666 is to replace a person, it can do almost everything that humans can do: clean the house, a butler, clean the campus, cut the grass. When owning this robot, we will have a lot of free time to do the work on the company, spend more time with the family because this robot can do almost the housework for us.

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Hello, my name is Duc Dat. I'm an engineer at ABC company, my job is an inspector. A few days ago, the CNC machine in the workshop suddenly stopped working. Me and everyone searched for the problem and after a day we found the problem, the problem was the broken PCI card. We have changed the new PCI card for this machine, after restarting the machine, the machine can run smoothly normally. I am quite satisfied with the resolution of this problem, but the check-in time was too long and my company was delayed. Damage to the PCI card is inevitable while working with CNC machines, so we will check and replace the card more quickly in the future.

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Hello, my name is Dao Quang Duc Dat, I'm 20 years old. Currently, I am studying mechanical engineering technology at Hanoi University of Industry. For a mechanical engineer, there are many careers to choose from. But after graduating, I want to work as an inspector for Vinfast company, my task is to supervise the technicians in the workshop. If you want to pursue this job, you need to graduate from a university, have an English certificate and be highly disciplined. I see myself as a person with a straightforward personality, not working with emotions and with high discipline, so I want to work as an inspector. Because I want to work for a Vietnamese company not only to earn more income but also to help the Vietnamese company develop more.