FACTORY SALE Cheap Steel Security Door System 1

FACTORY SALE Cheap Steel Security Door

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Supply Capability:: -

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Specifications

BEST SALE Steel Security Door
1)European advanced technology
2)Energy conservation
3)Sound proof, environmental

BEST SALE Steel Security Door ( commerce steel security door )

Steel security door supposed to protect your home safety. Which have good mechanical lock system and

stong metal structure lead to high safety glass level. DK steel door popular and export to Russia,Poland,

Hungary, Bulgaria,Ukraine,Nigeria,South Africa, Egypt,Iran,SaudiArabic, Libyan, Algeria ,Albania, Brazil,

Australia and some other areas. Pls check main specification as follow:

Standard size	2050960,2050900,250860,2050750
Steel sheets range of door leaf	0.7~1.0MM
Steel sheets range of door frame	1.4~2.0MM
Door leaf structure	70MM
Insulation options	Honeycomb paper;rock wool; fireproof board
Surface treatment	Powder coating
Lock system	11 lock pints; 13 lock points; 19 lock points around the leaf
Cylinder	Cooper with AB keys;
Opening direction	Left&right; inward&outward
Hinge	Invisible (open degree: 100~120) Visible (open degree:180)
Glass insert door leaf	Available
Accessories	handle; installation bolt; hinge; peephole; rubber seal; doorbell
Customer size	Available

Guarantee policy

360 days guarantee for our steel security door products. Any door broken from our factory will be change new door for you or discount from next orders.

Q: My house new house ready to install steel doors do not know how good to give you advice: Advantages and disadvantages of steel doors and windows Advantages: Not only beautiful and durable, and the lowest thermal conductivity. In terms of energy saving is far better than wooden windows, iron windows and aluminum windows, is the most effective means of sealing. Ordinary steel prices affordable, economical and practical. High-grade plastic window insulation, anti-aging appearance is not easy to deformation. Now most of the buildings have been popular, the use of large, wide range of use, because steel windows do not use metal, the state also recommended. Disadvantages: Sealing, safety, anti-theft and ventilation quality is not satisfactory. The reason is the lack of supporting the use of high-quality stainless steel hardware, resulting in the current high-grade profiles supporting low-grade hardware dissonant state, and plastic (PVC) can not be degraded, waste plastic windows difficult to deal with environmental protection. There is a gap easy to rust, slightly worse sound insulation, ordinary plastic windows easy to deformation, such as high-grade imports of expensive, thousands of dollars per square meter.

Q: Plastic doors are plastic doors or metal doors?: Plastic is white that is plastic, the so-called steel is the processing of the gap when the release of u steel lining, and some put thin iron, or even hold, named steel, understand?

Q: How to make steel doors: Plastic steel door manufacturing: steel doors are generally used in the factory with steel doors dedicated cutting, welding equipment manufacturing, is semi-automatic, automated production, quality can be guaranteed.

Q: What is the bright and unsharpable steel doors?: A fixed glass that can not be opened, and a fixed part is separated from the door.

Q: Plastic steel door titanium door which is good: 1, steel doors Advantages: (1) plastic steel door material with fire, no spontaneous combustion, no combustion, self-extinguishing. (2) thermal conductivity than wood, metal is much lower; insulation effect is much better than aluminum. (3) between -30 ℃ to -70 ℃, the sun, rain, dry, humid environment, no deformation, no discoloration, not brittle, but also acid and alkali drugs and waste salt erosion, , Cement, glue effect. (4) well-designed door structure with drainage, seams tight, can completely separate the rain, the sound is less than 20 UP. (5) the use of cleaning agents after cleaning as bright, the service life of up to 30 years or more. 2, plastic steel door Disadvantages: Plastic doors can only open one-way, the switch is not convenient, easy to deformation. 3, titanium door advantages: (1) high strength, good rigidity, light weight. (2) the use of temperature than aluminum alloy several hundred degrees, at moderate temperatures can still maintain the required strength. (3) titanium alloy in the humid atmosphere and sea water medium work, its corrosion resistance is much better than stainless steel; pitting, acid corrosion, stress corrosion resistance is particularly strong; alkali, chloride, chlorine organic products, Nitric acid, sulfuric acid, etc. have excellent corrosion resistance. But the titanium has a reducing oxygen and chromium salt medium corrosion resistance is poor. (4) titanium alloy at low temperature and ultra-low temperature, can still maintain its mechanical properties. 4, titanium door defects: The main limitation of titanium and titanium alloys is poor chemical reactivity at high temperatures with other materials. This property forces the titanium alloy to be different from the conventional refining, melting and casting techniques, and even often causes damage to the mold; as a result, the price of the titanium alloy becomes very expensive

Q: Home steel doors and windows original developers to install a single layer of glass, now want to transform into double glass. Find a production unit asked the next, said only the original single glass to cancel (waste), and then replaced by their custom double-layer insulating glass. Price of 260 square meters. Is this expensive expensive? Chongqing area. Is there a cost-effective production unit recommended?: Might as well add some money for color aluminum. 260 no need to change.

Q: What is the difference between a single glass and a double glass?: Plastic steel door single glass: plastic steel door profiles (frame welding assembly finished) + single glass Plastic glass door double glass: plastic steel door profiles (frame welding assembly is completed) + double glass (glass + space + glass) The difference is obvious, that is, glass, a single layer of a double layer, the glass of the corresponding bar for a single pressure and double pressure.

Q: What is the difference between steel doors and windows and broken doors and windows: Plastic doors and windows belong to the previous generation of products, the main material used plastic materials, glass for the double glass; broken bridge window in recent years, emerging profiles, to solve the plastic doors and windows strength, stiffness is not enough, and traditional aluminum doors and windows insulation effect is poor The problem is the master of the two. At present, steel doors and windows are gradually out of the stage of history, only in low - cost housing, rural areas, the only advantage is cheap, and with the passage of time prone to fade, deformation. Many of the old district are also gradually replaced in the new broken bridge aluminum doors and windows.

Q: Developers installed steel hollow steel doors, the quality of fine, do not want to change, but also worried about the aging of steel doors, tangled tangled, knowledgeable friends say it Anonymous | viewed 456 times: Demolished it, and now many of the balcony and the living room between the demolition of the door, installed into a door sets