Steel multi-purpose doors are durable, with good heat and sound insulation properties, and can be widely used in all areas of the building. Various specifications, flexible configuration, according to the different requirements of the use of a variety of choice of windows, louvers, hardware and other accessories, can provide a variety of solutions for the door of public buildings.
The louver design of the steel multi-purpose door enables the air to circulate smoothly and keep the indoor air fresh, especially suitable for places that need ventilation, such as restrooms, transformer substations, engine rooms, storage rooms, etc. Can be configured with superstructure and side structure, which can meet the choice of products with larger opening size, and also meet the demand of light and ventilation.
Design Highlights
1:Flush/folded door design available.
2:Various types of windows and ventilation louvers to meet the needs of light and ventilation.
3:The interior is filled with high-strength honeycomb board or insulating rock wool, lightweight and durable.
4:Multi-cavity hollow sealing strips are embedded around the door frame, bringing a good silent experience.
5:Fine hardware fittings, up to 200,000 times through the opening and closing test, durable.
steel multipurpose doors |
Door material |
galvanized steel |
Dimensions |
Customized according to drawings |
Door panel thickness |
50 mm or 2 in |
framework depth |
Standard 120 mm or 4.72 in |
Door panels |
1.0/1.5mm thick Galvanized steel sheet |
Door frame panels |
1.5/2.0mm thick Galvanized steel sheet |
standard hardware |
Locks, handles, hinges, door closers, shunts, etc. on request. |
surface finish |
Done |
Colors |
Powder Coating |
In-fill |
rock wool, honeycomb material |
Opening direction |
Swing inward/outward |
vision panels |
Multiple window styles can be customized |
Panel design |
Ventilation shutters can be customized and |
inside: PE film, outside: wooden box/carton and wooden pallet
|
inside: PE film, outside: wooden box/carton and wooden pallet
|
Applications |
electrical substations, mechanical rooms, storage rooms, restrooms, etc. |
Package |
inside: PE film, outside: wooden box/carton and wooden pallet |
Place of origin |
Shanghai, China (Mainland) |
production cycle |
40-50 days in high season, 30-40 days in low season. |
Detailed Photos



Color options


Engineering Case

Cooperative Partner

Company Profile
Shanghai Torque Industrial Co., Ltd. is a integrated modern company specialized in special doors &Windows sales and service. We provide design, production, installation and after-sales service according to customer requirements. Our products are widely used in shopping malls, hotels, schools, airports,railway station and other industrial &civil buildings.
Shanghai Torque Industrial Co., Ltd. is mainly engaged in fireproof doors, anti-theft doors, Explosion resistant doors and windows, vented explosion doors &Windows, rolling doors, cast aluminum doors, automatic doors, free doors, soundproof doors, insulation doors, anti-radiation doors, sliding doors, PVC rapid rolling doors, logistics equipment and so on.The company cooperates with excellent brand hardware suppliers DORMA, Ingersoll Rand, DOORMAX, STANLEY, ASSA ABLOY and BAOSTEEL. Our construction projects include the National Stadium, the Great Hall of the People, Shanghai World Financial Center, BMW, Mercedes-Benz, Jaguar, Land Rover, SONY, Panasonic, Intel, Wyeth, Bayer, BASF, Johnson & Johnson, GCL-Poly and so on.
To be faced with the future challenges, Shanghai Liju Industrial Co., Ltd. always strives to provide quality products, good after-sales service, and create a harmonious and beautiful tomorrow with professional quality, rigorous attitude and realistic spirit.

FAQ
Q: How can I find the exact price?
A:Please provide the exact size and number of doors you need.
We usually quote within 24 hours of receiving your inquiry (excluding weekends and holidays).
If you are very anxious to get a price, please send us an e-mail or otherwise contact us so that we can provide you with a quote.
Q: How do you ensure the quality of your sales?
A: For quality control, we have four testing procedures: initial, sampling, re-inspection and final inspection.
Q: What is your delivery date?
A: It depends. Usually, it takes 40-50 days after the deposit is received and all details are confirmed.
Q: What is the mode of transportation?
A:It can be transported by sea and air. Please check with us before placing your order.
Q: What are your payment terms for official trade?
A: Normally, T/T 30% deposit to start production and the balance before shipment.
Q: How do you enable our business to build long-term relationships?
A:1. We maintain good quality and competitive price to ensure our customers' interests.
2. We respect every customer as our friend, we sincerely do business and make friends with them, no matter where they come from.