TOP QUALITY Commercial Security Steel Door

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1000 pc
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Product Description:

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, Libyan, Algeria ,Albania, Brazil,Australia and 

some other areas. Pls check main specification as follow: 




Standard size


Steel sheets range of door leaf


Steel sheets range of door frame


Door leaf structure

50MM; 70MM; 90MM

Insulation options

Honeycomb paper;rock wool; fireproof board

Surface treatment

Wooden grain; Powder coating; Imitate cooper painting

Lock system

11 lock pints; 13 lock points; 19 lock points around the leaf


Cooper with AB keys; Alum cover cooper with AB keys

Opening direction

Left&right; inward&outward


Invisible (open degree: 100~120)  Visible (open degree:180)

Glass insert door leaf



handle; installation bolt; hinge; peephole; rubber seal; doorbell

Customer size





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. 

1. ITEM NO. LBS-8823



860mm*2050mm*50mm    410pcs/40HQ    
860mm*2050mm*70mm     320pcs/40HQ 
960mm*2050mm*50mm     360pcs/40HQ
960mm*2050mm*70mm     288pcs/40HQ 

3. THICKNESSNormally 0.6mm for door leaf,1.0mm For frame steel
4. MATERIALCold-rolled steel
5. DOORSILLstainless steel
7. OPEN DIRECTIONinward or outward
8. LOCK DESIGNAB Machinery lock
10.SURFACE FINISHINGheat-transferring or power-coating
11.INFILLING MATERIALhoneycomb paper or as your request

1.Firstly add plastic film on the door surface.


2.Then put foam on to avoid damage because of collision.


3.Finally strapp firm carton outside with shipping marks printed outside (door size, left or right opening, made in China,etc..).



860mm*2050mm*50mm    410pcs/40HQ    
860mm*2050mm*70mm     320pcs/40HQ 
960mm*2050mm*50mm     360pcs/40HQ
960mm*2050mm*70mm     288pcs/40HQ 

14.DELIVERY LEAD TIMEnormally within 20 days; exactly time depends on arrangement.
15.ACCESSORIESAdjustable reinforced hinges, specialty multi-point lock, handles, peephole,

door bell, rubber seal, installing bolts

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Q:Anxious: to come to the door that magnet called what name?
Door suction, building materials market to sell
Q:Two construction division had two, and practice did not, how to register and test next year ah?
With the situation last year, I was 10 years over 2 subjects, the practice did not, this year's test practice, after the. Wait until next March when you go directly to the original registration site, fill in the registration information, and then online banking payment can be, do not go to the scene audit, even for the unit, it does not matter, which directly write the unit, do not miss ah, March, or else a pity
Q:What is the door to the table installation test machine?
Lenovo provides a new service: the content of the service is to buy Lenovo equipment, customers, by the Lenovo professional and technical engineers for customer equipment testing, installation, commissioning to protect the normal operation of customer equipment. This service is currently Lenovo only support large customer service.
Q:Home door east of the master you look at the kitchen is not in the northwest corner ah, thank you friends
According to the drawings orientation is the case. I hope my solution will help you
Q:What do the fire department require?
In the case of a shutter door for fire or partitioning purposes, it must be a fire shutter door and the fire resistance must meet the specification requirements. In the case of evacuation or safe use, the fire regulations prohibit the use of any shutter doors.
Q:The difference between steel fire doors and wooden fire doors
In China, the fire door in accordance with the different materials, mainly wood fire doors and steel fire doors two types, there are also steel doors and other fire doors and doors of the use of very few, 99% of the market are wood and Steel fire doors. As the name suggests wood fire doors are made of wood as a frame material, filled with refractory material inside, to make it a flame retardant performance of a door. Steel fire door its internal filling in the wood fire door exactly the same, the difference is only the door frame and the door for the production of steel plate.
Q:Soccer penalty point from the goal when the number of meters ah?
Soccer penalty point is 11 meters from the goal. Football, the "world first movement" in the world, is the world's most influential individual sports sports. The standard football match consists of two teams each with 10 players and a goalkeeper, a total of 11 people, in the rectangular grass court against, attack. Soccer field must be rectangular, length 90-120 meters, width 45-90 meters, the goal is 2.44 meters high, 7.32 meters wide.
Q:Who has a good way to make money?
Start a small yellow board carton factory, the best of their own business, began to start buying machinery, rent factory. In the unfamiliar areas should listen to the views of experienced people. Carton is a complementary product of consumer products, so to say, as long as people have consumption, business and products, there will be no lack of product packaging. In the packaging materials, carton packaging accounted for a large part of the weight. Therefore, the carton factory is still very optimistic about the prospects.
Q:What are the units of measurement of doors and windows?
What are the units of measurement of doors and windows? Generally: fan (may only refer to the door, window) But in reality may be: a frame (door frame, which may include the door) Or a set (including door covers, hoods, doors, windows) If the processing, by area, generally refers to square meters.
Q:Bagua array of eight doors is what position
There are eight doors to pass the wind also. There must be P Plus, to be gossip of the four, when the main four things are also. The door is in the east, the main disease disaster; Du door value Sunda, located in the southeast, the main The door of the door, in the southwest, the main dead funeral funeral; shocked value against, in the west, the main fear of running; open the door dry bit , In the northwest, the main open to Tong.

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