Precious metals HS code alignment

List of the catalog of this article:

• 1,Precious metals HS code alignment How to wash the car cleanestly?
• 2, ! Car skin cleaning also has skills
• 3, How to clean up car carbon (I)

What is the cleanest way to wash the car?

Detergent car washing The main component of detergent is also sulfonic acid, and general detergent is also alkaline products. Although some detergents are also neutral, long-term use will hurt your hands, such as hand peeling. Therefore, it is not appropriate to use washing powder and detergent to wash the car.

Car wash is relatively clean with car wash sponge, car wash liquid and portable car wash. The car wash should be carried out in a place where there is no wind and no direct sunlight when the car body is cooled, and it should be cleaned with towels or sponges.

It is to wipe the car wash solution on the car body with a car wash sponge, and then use a high-pressure water gun to rinse the car. Remove stains. Carefully remove some residual stains on the car body, which requires the use of descaling water.Note: When removing stains, wipe in the direction perpendicular to the car.

Car cleaning is divided into two parts, one is the exterior of the car and the other is the interior of the car. The complete car washing method is to spray detergent on the surface of the car, especially the gap next to the steel ring and the door. You can use the same detergent or different special detergents.

How to clean the car: First, keep the car in a cool state and wash the car in a place where direct sunlight does not shine, otherwise the light is easy to dry the foam, which is difficult to remove when washing the car later. Wet the car with a water gun, and then put the car cleaner on a towel or sponge to wipe the car thoroughly. Then the order is also very important.

! There are also skills in car epidermis cleaning

1. For stains such as bird droppings, we can use shell remover or beauty wax to clean them. Car paint stains are attached to the car, which is also a headache for the majority of car owners. We can remove the sludge on the car body for treatment, which can adsorb paint and remove rust stains without damaging the surface of the car body.

2, x0dx0a Secondly, how to deal with it, cars with asphalt can directly spray asphalt cleaner on the surface of the car paint and stop for about 10 seconds for the asphalt to dissolve and then wipe it with a towel.Oil stains and insect stains need to be cleaned by pushing the whole truck with the sludge removal block.

3. Banana water Banana water is commonly known as Tianna water. Dip the towel in banana water and gently wipe it on the paint point, which can be used to dilute the paint. It has a good effect on cleaning the paint spot. Finally, rinse it with water. However, banana water is toxic, volatile and has a certain degree of corrosive properties, which will have a corrosive effect on car paint, so special attention should be paid when using it.

How to clean up car carbon accumulation (I)

1. How to clean up car engine carbon accumulation, the treatment methods include the following methods: First, add high-standard gasoline to rinse because the high-standard gasoline is relatively low-standard The octane value of gasoline is high, the combustion is complete and clean, and the possibility of forming carbon accumulation is relatively much lower. The residual carbon accumulation can be effectively washed through high-standard gasoline.

2. Disassembly and cleaning, "hanging bottles" and dry ice cleaning are the best ways to clean up car carbon. The most traditional method of disassembly and cleaning is to remove the engine from the car and then slowly wash it with detergent to clean up the accumulated carbon.

3. Engine cleaning agent Engine cleaning agent, commonly known as "hanging bottle", mainly uses engine cleaning agent to connect to the fuel pipe, so that the cleaning agent acts as fuel and discharges the engine through dissolution combustion. The disadvantage is that this method is harmful to the ternary catalyst, and it is not recommended to use this method to remove carbon more than three times.

4. The cleaning method of automobile carbon accumulation is as follows: engine disassembly and cleaning: In terms of effect, engine disassembly and cleaning is undoubtedly the most effective way to clean up carbon accumulation, but the whole process requires a lot of time and effort.