Abrasive screen —C120#

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Product Description:

Abrasive sanding mesh screen is made of nylon fabric, coated with

abrasive materials; there are three kinds of shape: Sheets, Discs and

Rolls.

It is not only suitable for sanding plaster and wall surface, but also for

sanding rusty spots of metal materials and making grinding and

polishing  treatment.  It  has  good

properties of grinding, cutting and filings

removing. And it is the most ideal

abrasive tool for interior decoration.



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Q:What is the power of electric heating film
Minimum one is 8000 Watt per square 80 watt , and maximum one is 130 watts per square, 13000 Watt in total, maximum and minimum installation depends on the production of insulation. That is to say, less pavement is needed if insulation performance is good, on the contrary, the actual wattage is the half of consumption of actual day.
Q:What are the standards of geotechnical test methods?
Common standards and codes related to geotechnical tests are as follows: (1) the railway engineering geotechnical test method "(TBJ102-96) (2) the geotechnical test method standard" (\ t50123-1999) (3) "road geotechnique test procedures" (JTJ051-93) (4) the water conservancy geotechnique test procedures in the "(SL237-1999) (5) the railway subgrade construction specifications, TB10202-2002 (6) the highway roadbed construction technology standard" JTJ033-950 geotechnical test in the regular program. (1) water content, density, proportion; (2) analysis of the particle size , liquid limit, plastic limit; (3) maximum density and minimum density of sand; (4) compaction test, bearing ratio test.
Q:What is glass wool board.
Glass wool board is the glass wool deep processing products, the raw material used is glass wool board semi-finished products, made by polish, glue spraying, stickers, machining and other processes. In order to ensure total certain decorative effect, the surface treatment should have basically two approaches: First, paste the plastic glossy paper; the second is spraying surface. Spraying is often made of embossed shape, its shape almost are large embossing, the medium embossing and dots spraying pattern. there are many colors to choose, but currently the most common used color is white. I hope my answer is helpful to you.
Q:Does anyone know the mechanism of ion exchange membrane
Ion exchange resins are high molecular material with an ion exchange function. in the solution, the ion of itself will have an exchange with the ion which has the same symbol in the solution. According to the nature of different exchange groups, the ion exchange resins can be classified into two categories cation exchange resin and anion exchange resin, most of the cation exchange resin have a sulfonic acid group (-SO3H), carboxyl (-COOH) or phenol (-C6H4OH), etc. and other acidic group, wherein the hydrogen ions can have a exchange with a metal ion in solution or other cation ion, anion exchange resin containing quaternary amine [-N (CH3) 3OH], amino (-NH2 ) or imino (-NH2 ) and other alkali basic group. They can generate OH- ions in water, which can have the exchange interaction with various anions, and the ion exchange resin is in very widely use, it is mainly used for the isolation and purification.
Q:What are the differences between rock wool and glass wool?
Rock wool board has short silk and glass wool has long silk,
Q:how is the effect decoration color film.
Home color equipment film can be described as powerful. IPL film advantages. life greatly improved the life of traditional wallpaper, only 8-10 years, traditional wallpaper over time will be worn, is extremely susceptible to water, easy to fade yellow, non-insulated problems . The home color equipment film limited to avoid these problems, the life of up to 30 years, using the latest nano-coating protection technology in the film surface to form highly cross-network structure, and therefore has a strong anti-scratch, abrasion resistance, cleaning and noise reduction capabilities. Tests show scratches harming show color cherry wall mounted film products ubder the same conditions (width and depth) of only 1/3 of an ordinary film. We know that the plastic deformation is an irreversible permanent deformation. Thus, regardless of how beautiful the wall, there is always a "pale", let people sigh endless. But now, "Sau Ying," added a special shape memory polymer SMP, a high-tech memory material after plastic deformation, slightly warmed as they "remember" their original shape and automatic recovery. Break time barriers, automatic recovery, used often new.
Q:What is electrothermal membrane technology?
Electrothermal film heating system differs from dot mode heating system represented by radiator, air conditioning, heating radiator represented by some heating systems, streamlined heating system represented by heating cable, and LC supply heating high-tech products designed by aerospace flight technology The electrothermal film is divided into high temperature and low temperature electric heating film. High temperature electrothermal film is generally used in electronic, military sector and so on. The low temperature electrothermal film is a half transparent polyester film which can be heated by electricity, processed with conductive printing ink, a metal carrier flow strip, and a hot press in the insulating polyester film room. Electrothermal film functions as heating element when working, sening heat into space in the form of radiation, so that the human body and other objects will be warmed up. Its integrated effect is better than the traditional convection heating mode. The low temperature radiation electrothermal film is composed of a power supply, a temperature controller, a connecting piece, an insulating layer, an electric heating film and a facing layer. The power supply is connected with an electric heating film through a conducting wire, converting electric energy into heat energy. Because the electric heating film is a pure resistance circuit, so its conversion efficiency is high, its most energy is converted into heat energy except for a little loss. Electrothermal film can not be directly used for floor radiant heating, it requires additional patent PVC vacuum envelope before it can be used in floor heating to ensure the use of effects and life.
Q:Who can tell me about the unit weight of glass wool board?
It depends on what density you need. The formula is length * width * thickness * unit weight = the weight of the glass wool. For example, if it is 20 meters long, 1.2 meters wide, 50 mm thick, and the unit weight is 20kg / cubic, that is to say, 20 * 1.2 * 0.05 * 20=24kg. 48kg / m³ means that the weight of one cubic meter is 48kg, you can imagine that with a piece of 50 square millimeter, how many of them can make a piece of cubic meter? You can get the answer by dividing 48, namely 48÷(1÷0.05)=48X0.05=2.4kg
Q:What are the specifications of plastic film
The measurement of thickness and refractive index of dielectric thin film by ellipsometry is widely used in modern science and technology. Therefore, the measurement of thin film technology has been greatly developed, ellipsometry is one of the most accurate methods of measuring thin film developed since 70s with the wide application of electronic computers. Ellipsometry measurement has the following characteristics: Can measure a very thin film (1nm), and the accuracy is very high, 1-2 orders of magnitude higher than the interference method. Is a non destructive measurement, without special preparation of samples, nor damage to the sample, compared to other precision methods: Such as weighing method, quantitative chemical analysis method is simple and convenient. The thickness, refractive index and absorption coefficient of the film can be measured simultaneously. So it can be used as an analytical tool. Is very sensitive to some surface structure, surface process and surface reaction. Is a method of studying surface physics.
Q:What is the film sticking process for computer screen?
First step of film sticking: aim the film marked ① at the screen and pull the ① layer of release liner label, slowly tear a part of this layer, pay attention not to touch the adsorbed layer (middle layer) of the protective film with fingers. Second step of film sticking: aim the adsorbed layer at the screen corner, make sure that the position is aligned, smooth the film carefully while tearing off the backing layer ① release liner. Because present protective film has electrostatic automatic adsorption function, generally it does not need be ironed too much. The action should be slow when sticking the film, and it is recommended to start sticking along the long side of the screen, from point to line, from line to surface successively

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