Bottom Trackless Door Screen System Manufactory

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
5000 m²
Supply Capability:
2000000 m²/month

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Product Description:

Scientificity For Bottom Trackless Door Screen System


No obstacle when coming in andout without track in the bottom, consideration design brings you more specialchoices. Balance device inside and no  spring make you can control the opening and closing of door screen at anywhere.


Reliability For Bottom Trackless Door Screen System

aluminum alloy section materialand anti-oxidation static powder spraying, at lest 20 years life is guaranteed.


Practicality For Bottom Trackless Door Screen System

Aluminum alloy structure has stableperformance, simple to operate and durable in use.


Flexibility For Bottom Trackless Door Screen System

Chain inside for smooth pushing.The track will hide when opening.


Universality For Bottom Trackless Door Screen System

can be used in all sorts ofsliding door, vertical hinged door


Convenience For Bottom Trackless Door Screen System

you can take off the net wheneveryou want,  

beautiful and elegance performance,saving space, easy to open and close, as well as decoration function.


Excellent material For Bottom Trackless Door Screen System: The folding net is made ofwaterproof  PET net from Taiwan, won’t be out of shape for a long time. Nice airpermeability. Anti UV.



Bottom Trackless Door Screen System Manufactory




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Q:Now popular radiation suit, is too expensive, you can use metal screens? As if according to the physical book said, should be able to shield electromagnetic waves it
feasible. Read the microwave oven did not, the door is transparent, there is a metal mesh plate, rely on the metal plate to block the electromagnetic wave, electromagnetic wave frequency 2.4GHz, mobile phone signal also 1.8G, longer wavelength. Upstairs the man knows that the protective clothing Gansha's not, not installed ladies afraid to see people with light, is blocking the microwave. Just said that the metal mesh grid name is called FSS surface. Is a form of the filter used by the microwave. You can do with the screen window, the choice of time, the screen wire metal wire conductivity is much better. Mobile phone signal wavelength of about 1.5 cm, select the mesh size is much smaller than this can be. Professional assurance, theoretical assurance. Experiment to try their own know, should be no problem, than the protective effect on the market should be good.
Q:Metal doors and windows (aluminum doors and windows) installation engineering inspection batches need to do a separate qualification? Is not to aluminum alloy doors and windows of the company's qualifications to do
Generally do not need, you can drink a party to talk about. Pay the management fee to the total package
Q:How to learn metal doors and windows by looking at the map
Learn the basic knowledge can be, you can also look at the side, while the control in kind
Q:Plastic windows are metal doors and windows or plastic doors and windows
Plastic window opening way: Push and pull, open, open, open on the suspension, etc., the new way to open the push and pull on the suspension. Different open mode has its own characteristics, generally speaking, sliding window has a facade simple, beautiful, flexible, safe and reliable, long life, light rate, take up less space, easy to use with the advantages of screens. Outside the window has a large opening, sealing, ventilation and air permeability, excellent insulation and other advantages. Push-pull, open-style.
Q:Plastic doors and windows are plastic doors and windows or belong to the metal doors and windows? Stainless steel blinds are metal doors and windows or special doors and windows?
Plastic doors and windows are plastic PVC doors and windows, the middle of steel lined. Shutters are metal, very easy to make
Q:Metallic window paint list works in square meters, according to the design diagram of what area to calculate
(A + 4) × (B + 4) = S at the end + 2L outside the +16 where: S --- leveling the amount of work; A --- the length of the building direction of the outer wall of the external length ; B --- the width of the building outside the direction of the length of the outer edge of the outer wall; S at the end --- the building floor of the building area; L --- outside the building exterior edge.
Q:Metal doors and windows generally taxpayers can declare a simple levy?
Metal doors and windows general taxpayers, can not choose a simple collection method to calculate the value-added tax.
Q:Fire doors are metal doors and windows or special doors and windows?
Fire door is an active fire separation, in addition to the role of ordinary doors, in a certain period of time, together with the framework to meet the fire stability, integrity, with fire, smoke, blocking the special function of high temperature door
Q:For the following types of traps: asphalt processing workers, metal doors and windows workers, masonry. 150
Crazing refers to the surface of the material or some of the defects in the stress caused by the concentration of the role caused by the fine holes, these holes and then developed into a very fine marks, known as the crazing. When the deformation is further developed, the orientation of the molecular chain is broken, the crazing is converted to microcracks. Under low temperature conditions, the molecular mobility in matrix asphalt decreased, the intermolecular distance was shortened, the intermolecular force increased, and the brittleness increased. The matrix asphalt after modification of the polymer, at low temperatures, the modifier particles can play a role in stress concentration, in the external force of the modifier particles around the trigger a lot of crazing or shear zone, the crazing or shear The development of the belt will end with another grain, and when the crazing and the crazing meet, the cramps will be diverted or branched, and the coordination of these processes will greatly delay the destruction of the material. When the material is further stretched, due to the modulus of the asphalt at low temperature is greater than the modulus of SBS and SBR, in the process of converting the crazing into cracks, due to the presence of modifier particles at the interface, it crossed the cracks and blocked the cracks To further expand the development while absorbing and consuming the energy required to break the mixture, thus increasing the elongation at low temperature of the asphalt and increasing the crack resistance.
Q:Metal doors and windows of the three qualifications in the 4000 square meters refers to the building area or doors and windows area?
1.14 doors and below the building of the metal doors and windows works;       2. Area of 4000 square meters and below the metal doors and windows works.

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