Steel Security Doors

Energy-Efficient Security Door with Thermal Insulation and Locking System

Energy-Efficient Security Door with Thermal Insulation and Locking System
Energy-Efficient Security Door with Thermal Insulation and Locking System

Product Description

Product Parameters

Product Parameters

Standard Size:

2050*960 (Accept Customization)

Door Leaf Thickness:

68mm (can be customized)

Door Leaf:

Standard 0.8/1.0mm (Accept Customization)

Inner Filling:

Fire door core panel/honeycomb paper(Accept Customization)

Lock Set:

High Quality Main Lock+Side Lock+Up-Down Lock

Surface Treatment:

Heat Transfer(Accept Customization)

Open Direction:



Handle;Lock;Hinge;Peephole;Door Bell;Bolts


Fireproof; Burglarproof

Transaction information

Unit of measurement:



payment method:


Trade terms:




General logistics information

type of shipping:


Port of shipment:

Zhejiang China

Supply capacity:


Packaging method:

1PVC Film+4Conner Protect+White Bubble Bag+Foam Board+Export Carton

Additional information


700,000 pcs/year

HS code:


Maintenance Tips for Long-lasting Performance of Home Door Locks

To ensure the long-lasting performance of door locks in homes, it is important for people to practice careful maintenance and develop good usage habits. Avoiding unintentional forceful door slamming can prevent situations where the lock suddenly becomes difficult to open.

1. Maintenance of Door Panels

Frequently use a clean, soft cloth to wipe away dirt from the door panels. Ensure that the anti-theft door remains dry and protected from prolonged exposure to sunlight and rain. For plastic-coated steel panels, take care to protect the coating film from scratches. For spray-coated steel panels, avoid contact with water or other stubborn stains or corrosive substances to prolong the lifespan of the anti-theft door.

2. Maintenance of Door Frames

Door frames in anti-theft doors are entirely made of spray-coated materials. The maintenance methods are the same as those for door panels. However, after installation, promptly fill the gaps between the door frame and the wall with cement to prevent damage to expansion screws and potential losses. Regularly remove dust deposits from the lock bolt area at the bottom of the door frame.

3. Maintenance of Lock Mechanisms

Periodically blow a small amount of pencil lead powder into the lock cylinder of the anti-theft door to ensure smooth rotation of the lock. Inject a small amount of cleaning oil into the mechanical transmission of the main lock mechanism and regularly wipe the lock handle or luxury handle with a soft cloth.

4. Maintenance of Doorbells

Use gentle pressure when pressing the doorbell button. Replace the battery when the power is low. If leaving home for an extended period, remove the battery.

5. Maintenance of Door Mirrors

Regularly wipe the door mirrors with a soft cloth to prevent oil stains or corrosive substances from adhering to the surface. Avoid exposure to moisture, high temperatures, or direct sunlight. For more information you can contact USELUCK DOOR.

  • FAQ

    Q1: Are you manufacturer? Where is your factory located?
         A: Yes, we are. We are a professional and one of the largest door manufacturer and supplier in China. we can provide nice goods at competitive price.Our factory is located in Yongkang City, Zhejiang Province , the city of the China Science and Technology Hardware Center.
    Q2: what is the minimum order quantity?
        A: Our min order qty is 100pcs.
    Q3: How long is the delivery time?
        A: It depends, normally, 15-20 working days after received the deposit and all details confirmed.
    Q4: Can we mix the 20ft container?
         A: Yes, if the items are meet our min order qty.
    Q5: How can you guarantee your products' quality?
       A: To control quality, we have four testing procedures: initial inspection, re-inspection, final inspection and sampling inspection.
    Q6: What are the terms of payment in your formal trade?
         A: Usually, T/T 30% deposit to start production, the balance paid before shipping.
    Q7: What preferential terms you could give me if I increase the order’s quantity?
         A: The price will have discount. More QTY, more discount.

  • Useluck Door Accessories

    Energy-Efficient Security Door with Thermal Insulation
    Energy-Efficient Security Door with Thermal Insulation

    Our accessories include: handles, lock cylinders, fillers, hinges, side locks, rubber strips,and door skins.Due to our high daily demand for parts, we invite you to contact us directly for purchasing with highly competitive prices!


Energy-Efficient Security Door with Thermal Insulation





country of origin:

Zhejiang China

Type of supply:

Original Manufacturer

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Useluck Security Door
Office: 1401-1, Building 1, Ruin World Building, Hangzhou, Zhejiang Province, China
Factory: Baiyang Industry Area, Wuyi City, Zhejiang Province,China.
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We are a professional manufacturer in China. We continue to innovate so that our customers can have better products and services.
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