Abrasive screen—A400#

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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:Now what is the latest color steel sandwich board? such as: Foam, stretches, glass wool
Foam is the mainly material, now with the increase of rock wool, the rock wool can be fireproofing and sound absorption, it may also lay glass wool in the interior of color steel plate and the function is sound absorption and thermal insulation.
Q:Does computer screen need to stick film?
Paste, the LCD screen will produce static electricity, so it is easy to absorb dust. We can't wipe the screen with tissues every time because there will be polishing scratches on the screen for a long time. It is simple and convenient to wipe directly on the film after sticking the film. which will not affect heat dissipation.
Q:What are the characteristics of HDPE geomembrane?
As a new material, geomembrane has excellent anti-seepage effect, corrosion resistance and chemical stability. And it can process features and functionality according to the actual project needs. Geomembrane has been widely used in water conservancy embankment dam , reservoir seepage. At the same time, it has ben widely used as seepage-proof, anti-corrosion, leakage-proof and non-hygroscopic material in channel, impounding reservoir, cesspit, swimming pool, house building, underground structure, wasteyard, environmental engineering, etc.
Q:How to remove the film on the floor?
You can smear some banana oil on the floor before you remove the film.
Q:How to use glass wool for filtering?
Buchner funnel, but not filter paper.
Q:Why composite geo-membrane can not be used in underground garage?
Composite geo-membrane was invented in China, applied in the The South-to-north Water Diversion Project with good anti-seepage effect. While there are no composite geo-membrane in foreign countries. It has also been widely used in subway tunnel and other underground constructions. Of course, it can be used in underground garage , but you must choose the appropriate specifications. It is recommended to use 300g/1.0mm/300g composite geo-membrane. The following are the details. Composite geo membrane is geotechnical impermeable material made of plastic film as anti-seepage material and non-woven fabrics. Its waterproof performance mainly depends on the performance of plastic film. Impermeable plastic film at home and abroad are mainly polyvinyl chloride (PVC) and polyethylene (PE), which are Polymer chemistry flexible material with smaller proportion, good extensibility and high adaptability to the deformation. Corrosion resistance, low temperature resistance, good anti-frost property. The main mechanism is to block earth dam leakage passage by imperviousness of plastic film and bear hydraulic pressure and adapt to deformation of dam with greater tensile strength and elongation. Non-woven geotextile is also a kind of macromolecule staple fibre chemical material shaped through acupuncturing or hot sticking, having high tensile strength and extensibility. Combined with plastic film, it can not only increases the tensile strength and anti-puncture ability of plastic film, but also increase the friction coefficient of contact surface and make the composite geo-membrane and packaging layer stable as the non-woven fabrics surface becomes rough. At the same time, they have good corrosion resistance to bacteria and chemical action, not afraid of acid, alkali, salt erosion, high seepage coefficient.
Q:What is the best construction method for building a fishpond with geomembrane?
The geomembrane can be welded
Q:Can the electrothermal film be used in bathroom?
The electrothermal film can be installed in bathrooms with no other influences. The electrothermal film a heating material which is made of a special conductive polymer material and metal current carrier that is melted and pressed between insulating films. After power on it will generate heat. It is mostly used as heating elements.
Q:How to get rid of the film on computer screen?
Draw a cross and paste at a corner of the screen with wide adhesive tape which is better to be longer, and then lift the underlying tape, the film will be peeled off. Or find some plastic cards to scrape the corner of the screen, and then tear the whole film down after scraping up a corner. The film has no glue and the like, so there is no residue when tearing down the whole film.
Q:What is the code for check and acceptance of reinforced concrete project ?
Article 2.1.1 Materials of the template and holder shall be steel, wood or new materials. The steel should be consistent with the No. 3 steel standard in the "Ordinary carbon steel grades and general technical conditions" (GB700-79). The timber should be consistent with the selection criterion of bearing structures under Code for construction quality acceptance of timber (GBJ206-83) , the tree species can be selected according to regional conditions, and the material grade shall not be under Ⅲ grade. Article 2.1.2 The template and holder must be in accordance with the following provisions: First,ensure the shape, size and position of engineering structures and components in each part is correct. Second, have enough strength, rigidity and stability, to withstand the weight and lateral pressure of newly poured concrete, as well as load generated in the process of construction.Third, simple structure, convenient assembly and disassembly, convenient for reinforcing bar colligation and installation and concrete pouring and curing process. Fourth, tight template joints without spillage. Article 2.1.3 The design, fabrication and construction of composite steel template, large formwork, climbing form and so on shall be in conformity with the relevant professional standards. Article 2.1.4 The contact surface of template and concrete shall be coated with separant. Do not use separant which will hinder the construction of decoration project. Article 2.1.5 The templates and holders shall be properly maintained, and the steel formwork and steel supports shall be prevented from corrosion.

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