Many electrical backsheets have two small squares overlapping, what does that mean?

Class I structure symbols (two-sided boxes). Rings, connectors, or wires, components of the device.

The color plate should not be stacked directly on the ground, and a special base should be used to place it on the flat ground to avoid plates.

Deformation, warping.

The color plate should be placed indoors at room temperature, and should not be stored in the open air, so as not to rust the color plate due to water leakage, or the coating film will be softened due to too high temperature, and the coating film will be hardened due to too low temperature. If it needs to be stored outdoors for a short time, the surface of the color board should be covered with protective items such as rainproof cloths. However, it should not be stored outdoors for a long time.

Precautions for transportation, loading and unloading:

Household appliances color steel plate.

In the process of transportation, loading and unloading, if it is not handled properly, it may lead to scratches and abrasions on the surface of the color plate.

Warping, creases, or rust, glossiness.

reduce other defects. In order to avoid the occurrence of the above defects, please note the following:

a.Special tools should be used to transport the color plate, not directly hoisted with wire rope, and should be handled gently, do not make the color plate touch other sharp and hard objects.

b.During transportation, the color plates should be fixed and stacked beyond the standard.

c.There may be burrs on the cutting edge of the color plate, so when taking the color board, it must not be dragged or pulled, so as not to scratch the next color board.

d.The surface coating of the color plate is easy to be damaged by sharp objects, so it is recommended to use protective materials such as paper pads when moving after processing.

Class I structure symbols (two-sided boxes).

Rings, connectors, or wires for the device. Subassembly.

Is it a small square with the beginning and the beginning written on it? Refers to the station of origin and transit of this station.

It means that a real-name ID card is required.

The two black holes next to the bottom CE are the hanging ornaments, and the thread is threaded through one side and comes out from the other side =

CE is the meaning of CE certification a safety certification mark that is regarded as a passport for manufacturers to open and enter the European market. (But it doesn't mean that it's parallel goods, just like Chinese have passports).

If it is movable furniture, it doesn't matter, you can change the position slightly, but if it is fixed furniture (such as custom wardrobes, etc.), you need to make a hole in the corresponding position on the back panel, so that the switch can be opened and closed in the cabinet.

In addition, the customer can be directly advised to change the switch position. Move to a location where furniture won't get in the way (although it's more difficult for a house with already wall-covering).

Digging a hole is generally hollowing out the back plate, but pay attention to the position of the grid.

Hello,U stands for 4K,5000 is a model of TV。

Hisense TV55inchM5000U-Mocha goldSUSFrenched steel,The only color TV at the same price uses2G+8G configuration,What is more conscientious is that there is an independent TV backplane,The overall stability and security of the TV are OK。

55 inch TV cm long and cm wide.

Hisense adheres to the development strategy of "technology enterprise, steady operation", based on optimizing the industrial structure, technological innovation as the driving force, and capital operation as the lever, sustainable and healthy development. And Hisense TV was the first to obtain the national export inspection exemption qualification。 Hisense is one of the first batch of innovative enterprises in the country, a pilot unit of the National Innovation System Enterprise R&D Center, a model of the top ten state-owned enterprises in the country recommended by the Propaganda Department of the CPC Central Committee and the State-owned Assets Supervision and Administration Commission, and the only one in the country that has won the "National Quality Award" twice, with a national enterprise technology center and a national postdoctoral research workstation.

U stands for 4k, 4k even if the resolution.

Please give the ** of this component, otherwise it is difficult to tell what you are talking about.

The screen of the TV is like a bai painting "pasted" on the glass, and from a distance it looks like dao is floating in the air, the TV screen version.

It can be so thin, and the latest TV technology makes everyone marvel at the same time, and they are also very curious.

It was measured by a technician with a professional instrument. The thickness of this TV is millimeters.

The thickness of two one-yuan coins stacked together is millimeters, and the thickness of this TV screen is thinner than the overlapping of two coins, it is the thinnest TV in the world produced by Chinese TV companies.

The newly launched domestic ultra-thin TV made a stunning appearance, so that everyone who walked by it couldn't help but stop and enjoy it.

I was very surprised, I didn't expect the TV to be so thin, and it was almost like a painting. The TV is the thinnest TV I've seen so far.

The ultra-thin screen means a more demanding process, which will lead to a decrease in the yield rate of the screen and an increase in cost. The second is heat dissipation, the third is deformation, the ultra-thin screen requires a higher strength backplane to ensure the overall flatness.

That's an overflow pressure relief pipe, and the lack of antifreeze is not too big, if the lack to be replenished often, you should check other places, see around the engine ** there is a white alkali place, is the leakage place.