Mining industry HS code analysis

List of the contents of this article:

• 1, Misunderstandings in car-loving DIY car maintenance
• 2
  、Teach you how to DIY clean your car
• 3,Mining industry HS code analysis DIY method of removing odors in the car
• 4. How to DIY primary school students' car handmade method illustration

Misunderstandings in car-loving DIY car maintenance

1. Misconception one: If the air conditioner is not cool, it must be fluorine-loving This is a common sense error, which is reasonable in special cases, but it is still undesirable in most cases.

2. Many drivers know that too low tire pressure is easy to cause tire wear, but if the tire pressure is too high, the car is prone to flat tires, which is more dangerous! Some drivers like to fill the tire pressure higher, thinking that this can be both overloaded and fuel-saving. However, if the tire pressure is too high, the tire will be less connected to the ground, the wear will be aggravated, and it is also easy to puncture the tire.

3. Misconception: The more oil, the better. If there is too much oil, the crankshaft shank and connecting rod will cause violent stirring when the engine is working, which not only increases the internal power loss of the engine, but also causes oil burnout failure due to the increase of oil splashed on the cylinder wall. Therefore, the amount of oil should be controlled between the upper and lower lines of the oil dicator.

Teach you how to DIY clean your car

1. It's best to spray with the steam injector mentioned above, but there are also some detergents on the market specially designed for cleaning velvet. It's best to use velvet cleaners with a moderately soft and hard brush, which will have a better effect.

2. Professional car wash should add a pre-washing procedure before washing the car. Even if a special pre-washing solution is sprayed on the car body with professional equipment and waits for a minute or two, after soaking, most of the sand and soil can be separated from the car paint, and then rinsed with a water gun, which can avoid the danger of sand and mud scratching the paint when washing liquid.

3. Wash the leather seats with soap. Leather seats are afraid of scratches by hard objects, and even more afraid of the corrosion of chemical detergents. In the past, I went to the car beauty shop for cleaning, and used more foam decontamination agents. After drying, the skin surface became hard and there were small cracks.

4. If you wash the car by yourself, you can take care of all the small corners, and the washed car is very clean. Isolation cream: wax your car. Operation index: ★★★☆ After the car is washed, a protective film should be applied to the car. Although car paint does not need daily care like human skin, frequent waxing is essential.

5. Use special car cleaning liquid. When some people wash cars at home, they will use some cleaning liquids, such as laundry detergent, detergent, etc. to wash the car. In fact, it is not right to do so.

6. Pay attention to the order of car washing. The correct order should be the roof, front and rear covers, side of the body, lamps, bumpers, skirts and wheels. Because the water flows from top to bottom with dirt, only by washing from top to bottom can it be washed clean, water can be saved and scratches be avoided.

Analysis of DIY methods to remove odors in the car

Open the window for ventilation. First of all, it is necessary to open more windows for ventilation, which will be conducive to the smell to spread out. If it is not closed all the time, the smell will not spread out. If the space in the car is small, you need to open more windows for ventilation, which is also conducive to maintaining air convection. Lemon removes odors.

The following is the method of removing the smell in the car: fruit peel deodorization: the car owner is used to using some fruit peels to remove the smell in the car. This method is effective and relatively simple to operate. When operating, try to choose grapefruit peel, orange peel, etc., vegetable deodorization method: smoked onions that make people cry, to remove There are also special effects for the smell in the car.

Use smell to coverIn the way to cover the strange smell, you can also put some fragrant fruits in the car to let the fragrance spread for a long time. Some fruits can not only emit fruity fragrance, but also have strong adsorption ability. For example, grapefruit, pineapple, lemon, orange, etc. Eat the leftover grapefruit peel and pineapple peel can also be used as a tool for deodorizing in the car.

How to DIY primary school students' car handmade method illustration

Carton making tutorial is as follows: Prepare the necessary materials: toothpaste box, four small bottle caps, double-sided adhesive, Scissors, clay, straws. Cut the toothpaste box according to the picture below, and pay attention to the same size on the left and right sides.

Prepare all the materials, as shown in the figure below: cut the cardboard into a rectangular shape to make the chassis of the car.Draw the chassis of the car with a pen, and the front end is used to hang a rubber band. After sketching, use scissors to reduce the excess part, and the disc of the car is done in this way.

First of all, prepare the double-sided glue bottle cap corrugated paper waste paper box needed for DIY cars. Take the common toothpaste box as an example. Colored pencil and dirt scissors 2. Then cut the toothpaste box with scissors to a half of the length of the length. As shown in the figure below. 3 After that, cut half of the toothpaste box should be cut along the edge.

How to make a handmade car: use a ruler and a knife to cut the toothpaste box into two pieces, one end into a carriage and the other end into a car head, with a ratio of 3:1. Draw the oblique line on the front of the car with a pen and ruler, and then cut it with a knife.