Abrasive screen—A40#

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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:Can Kunnai glass wool board and sound absorption blankets be used to maintain sound insulation in hotel floor? Can it decrease half of the noise? How to install?
However, the best solution to sound insulation for the floor is to use external thermal insulation board as the bottom material, and it can reduce a quarter to one-third of the sound. Glass wool felts also have good sound insulation effect. As to whether it can lower half of the noise, no one can be certain.
Q:Construction technology of geomembrane:
Notes for geomembrane joints: (1) the joint treatment of the geomembrane is the key process of construction, which directly affects the service life of the project. Indicated by quality test, hot weiding is an ideal way. (special adhesive is also available). Heat welding method is heating the surface which is connected with the PE geomembrane, the surface melting, and then through the pressure to merge them into one, (2) Geomembrane shall be paved along a certain direction, on both sides of the geomembrane should be reserved for certain PE membrane and PET membrane bonding layer.While paving, we should adjust the tendency of geomembrane of each unit, in order to bring convenience to two units geomembrane welding. (3) Press geomembrane with sand bags to prevent wind after pavement, edge joints requires no dirt, moisture, dust, etc.. (4) before welding, adjust the joint at two sides of PE membrane, jointing them with broadband, and making them smooth, and no wrinkle. (5) When welding, it is better to have a technical personnel of certain experience, and use a special welding machine for welding. Adjust the temperature and speed, (can also use adhesive to bond). According to many years of practice, it is proved that the thickness of the geomembrane is not less than 0.25mm, because too thin is possible to produce porosity, and it is easy to be damaged in the construction to reduce the seepage control effect. During the construction of geomembrane, we should pay special attention that the pavement should not be too tight, shouldn't wrinkle, and the jointing should be firm. We should construct strictly according to the technical specifications, checking five quality clearance comprising preparation, paving, splicing joints, testing and backfill.
Q:What is the HDPE geomembrane of rough surface?
The rough surface HDPE geomembrane material is composed of 97.5% high-quality polyethylene, 2.5% carbon black, trace antioxidant and heat stabilizer. The rough surface is the result of a special co-extrusion process, the process is a molding production, the most important characteristic rough surface HDPE geomembrane offer is that it can increase the stability of the slope material, from Ji-light delay Gan hoot imitation dec containing wet splashing and ultimately HDPE geomembrane can carry Kongyong Rong maximize product adapted to the characteristics of the laying of a steep slope in cost savings but also improve design capabilities.
Q:What is the membrane waterproof
Waterproof coating has a structure layer of waterproof ability and is painted a certain thickness of waterproof coating on the surface, curing at room temperature and forming a layer waterproof coating with a certain toughness.
Q:What are the impermeable advantages of comosite geomembrane?
composite geo-membrane is combined by geotextile and geomembrane, permeable material is mainly used in seepage-proof, the products have high extensibility and deformation, modulus, acid and alkali resistance, corrosion and chemical resistance, seepage-proof and other features.
Q:How much does the electrothermal film floor heating cost?
Electrothermal membrane floor heating is calculated by 120 watts / square meter and 8 hours a day, the electricity of a day is around 1kwh. In fact, it will be more energy-efficient in the actual use, as long as it achieves the state regulations of energy efficiency standards, indoor insulation effect will be better, the power consumption will be greatly reduced. Secondly, it can also achieve energy-saving behavior in the use of the process, such as travel time is more than three days, the electric floor heating system can remain in the state of low temperature operation, and also can used in the rooms where no people live in it, electricity consumption will be greatly reduced. Another electrical floor heating can make full use of peak valley electricity policy, peak valley electricity of the city is respectively: Peak power 8: 00-21: 00, the price is 0.5583 yuan / kwh; valley power is 21: 00-8: 00, electricity price is 0.3583 yuan / kwh we can adjust peak power higher at night in the use of electric floor heating, it can be 18 kwh, and we can adjust the temperature lower during the day, it can be 10 to 12 kwh. The concrete can be fully utilized at night time to heat storage, and be released the heat during the day. The laying of electric heating film needs a very good design, it should meet the requirements of users on the temperature in accordance with the different requirements of the use of space to lay the corresponding power of the electric heating film.
Q:What's the types of glass wool points? do they have the same sound insulation effect?
Rock wool and glass wool have poor sound insulation effect, and different prices, glass wool is easy for construction.
Q:Should the plastic film of mattress be removed?
The plastic film of a new mattress should be removed. It should be removed or it will impede the air circulation within our body and the mattress which leads the bedding get damp because of our sweat. It is really unhealthy. And the smoothness of it can make it easier for bedding to fall to the ground which means another potential safety problem. So it is an requirement to remove the plastic packaging film of a new mattress.
Q:Polyester and glass wool, which is better, and why?
The first one is better, it has good flexibility.
Q:How good of the quality of waterproof electrothermal film?
It's OK.

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