Abrasive screen —C80#

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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:Electrothermal film and electric hot plate, which one is better?
Electrothermal film is recommended, the external transfer form of heat energy produced by it is thermal infrared radiation and convection, the conversion rate between electric energy and heat energy is more than 98%, which can immediately rise the temperature and ensure the stability of the indoor temperature, play the role of comfort, energy-saving and durability, safety. It is a worthy option.
Q:are Polypropylene composite geotextie and polyethylene composite geotextile geomembrane the same?
Geotextile geomembrane should meet the engineering requirements. First introduce geotextile: Geotextile provisions stated new types of construction materials for building projects, by wire or staple fiber through the same equipment layout of the mesh and then by acupuncture and other technology to make the fibers intertwined with each other from the entanglement, normalizing fabric so that the fabric is soft, plump ., thick, stiff and thickness meets the requirements. according to short silk spinning silk or spinning geotextile or geotextile tensile strength higher than the wiring soft short silk fiber with tear resistance . major role: Filtration, drainage, reinforcement action specification 100 grams 800 grams per square meter per square meter main material of polyester fiber having excellent water permeability, filtration, durability and ability to adapt with a deformable surface drainage capacity geomembrane plastic film as a impermeable substrate and spinning cloth composite geotextile material impermeable membrane impermeable fabric two cloth membrane performance depends on impermeable plastic film performance geomembrane kinds of flexible high polymer material proportion of the basic raw material waterproof barrier materials than the extension of the strong deformation capacity to adapt to the high corrosion resistance low frost resistance
Q:When can't PDHE impervious film be installed?
It can not be installed in winter for the low temperature will affect the effect of construction and welding.
Q:can geomembrane reach A-class seepage-proof?
the seepage-proof effect of project composite geo-membrane is mainly depends on the interlayer, the norms of seepage-proof geomembrane is 100-1500g/square meter, in order to guarantee the good seepage-proof effect, the thickness of geomembrane should be less than 500g/ square meter, outer geotextile should be less than 300g, too thin geotextile will reduce the sand stone resisting effect, increasing geomembrane's thickness and prevent sand stone corrosion will influence the seepage-proof effect of geomembrane, composite geo-membrane's norms is less than 800g/square meter, which can reach the seepage-proof standard.
Q:What is geotextile?
Geotextile: It is a kind of coiled material used in the field of Civil Engineering, which is wove by synthetic fiber or made of non-woven technology such as adhesion bond and hot-pressing needling, also known as geotextile fiber or geomembrane.
Q:Is the thickness gauge for lacquer film precise?
Under normal circumstances it is relatively accurate. It may be inaccurate under special occations. After all, every product has its particularity. The thickness gauge is used to measure the thickness of materials and objects. It is usually used to measure the thickness of the products (such as plate, strip, film, paper and metal foil) in industrial production. There is radioactive thickness gauge that takes advantages of the α-rays, β-rays, γ-rays; ultrasonic thickness gauge that takes advantages of the ultrasonic frequency changes; eddy current thickness meter that takes advantages of the vortex principle; thickness gauge that takes advantages of the principle of mechanical contact measurement.
Q:Glass core material of ultra-fine glass wool
Ultra-fine glass wool is made from silicon powder through pressing and vacuumizing. So there is a big risk. Once the vacuum leak, powder in the package will fall, causing the package swell. The swell will cause a series of problems in the external walls. STP board with ultra-fine glass wool as core material have the above problems and air leakage risk. But it has little effect on project quality. We have compared these two materials. The product packaging is the same and the main difference is the inner core. Product with ultra-fine glass wool as core material has low heat conductivity coefficient, good thermal insulation effect, while product with silicon powder as core material is not as good as the former and cheaper.
Q:What determines the hardness of paint film
it is one of the important properties of machinery strength of paint film. Its physical meaning can be understood as the resistance of the film surface to the action of the other hardness of the larger objects. It can be determined by measuring the ability of the film to resist deformation when a certain mass load is exposed on the surface of the film, (including the ability of deformation caused by collision, indentation or scratching). the test equipment should have damped pendulum hardness, scratch hardness, indentation hardness ,ect..
Q:How to put up membrane on the laptop?
For the laptop protective film pasting, after wiping the screen clean with a cotton cloth, you can first peel off a corner of the protective film, and aligh the corner with a corner of the screen and paste it well. Peel off the film slowly and paste the film bit by bit with the cotton cloth in the hand. In the process of pasting, you should be careful not to let the air go into the space between the film and the screen. After pasting is finished finally, wipe the whole screen parallelly and it is done.
Q:When using two cloth a film of composite geo membrane to lay the roadbed surface, the geomembrane have two sides of hair and smooth, which one is on the top, why?
Two-cloth film exists the problem of cloth and film and cloth on both sides of cloth cloth membrane cloth and film deposit surface light membrane surface cloth.

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