Overhead sectional door most widely used for loading areas on all types of industrial premises and Designed with a curved overhead track, these vertically-opening sectional doors can be installed in areas with reduced head room. They provide heat and sound insulation with its composite panel construction.
The counterbalance and cable system provides quiet and straight forward operation for manual doors. Electric operation is available for larger applications that can incorporate many alternative operator options to suit all client requirements.
The standard outer panels are manufactured from 0.5mm thick, high quality zinc coating to BS EN 10147
For the best weather protection the sectional door panel has an interlocking hinged joint integrating a high quality seal the full length of the panel.
A counterbalance system is incorporated into the sectional overhead door to ensure efficient and effortless operation.
The counterbalance comprises of springs mounted on a steel shaft that are high tensile helical wound steel. It has been heat treated for enhanced performance for around 50,000 cycles.
Reducing shaft friction is achieved with the aid of brackets and guide rollers incorporating highest quality sealed bearings.
Overhead Sectional Door,Overhead Sectional Garage Door,Automatic Overhead Sectional Door, Overhead Insulated Garage Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.selfrepairinghighspeeddoor.com
   Diameter: 20mm - 150mm
   Length: 5.8 m, 6m or on the request of clients
   Material: Q195
   Zinc Coated: 60
   Pipe section: Round
   Technique: ERW Cold Rolled and Zinc Coated Steel Material
   Standard: GB, ASTM, DIN, JIS, AISI, BS
   Steel Type: Carbon Structural Steel
   Forming: Cold Drawn and Galvanized SteelÂ
   Connection Form: Welded Connection
   Trade term: FOB, CFR, CIF.
   Payment term: T/T, L/C
   Package: Standard export package or according to customers' requirement.
  Our advantage:
Our company unique advantage are: 1.Popular and trustworthy domestic international trade company 2. Strategic location: Our factory is next to Tianjin Xingang port. 3. Industrial product expertise team. 4. Product reliability, experienced OEM, competitive price, and on-time delivery. 5. On-time feedback and communication. 6. Business belief: Credit First, Be Honesty, Mutual Benefit and Customer Supremacy.
FAQ
Q: What about your payment term?
A: Usually T/T or L/C, 30% deposit and 70% before delivery.
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Q: What about your standard delivery date ?
A: Within 15-25 days after receiving your deposit.
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Q: How about your capacity?
A: For steel pipes, 400,000 tons per year.  For steel plate, 60,000 tons per year. For steel coil is 5,000,000 tons per year.
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Q: What about your package
A: Usually as customer's requirement.
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Q: If products have some quality problem,how would you deal with?Â
A: We will responsible for all of our quality problems.Â
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Q: How to get accurate price /Â quotation from you?Â
A: Please kindly tell us below details and we'll send our quotation to you ASAP:Â
1) Pipe's outer diameter            Â
 2) Wall thickness     Â
3) Section Shape (round, square etc.)
4) length for each pipe  Â
5) steel grade Â
6) Standard (e.g.: API 5L)
7) Order quantity  Â
8) Designation port (BK, BKW etc.)Â Â
9) Trade Terms
 In all, the more detailed information, the more exact price we quote.
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ERW Pre-Galvanized Steel Pipe for Building
Model NO.: 1/4′′mm-4′′mm*5.8m/6m
Size: 1/4′′mm-4′′mm*5.8m
Zinc Coated: 60G/M2
Section: Round
Length: 5.8 M, 6m or on The Request of Clients
Trademark: SDRC
Transport Package: Standard Export Package
Specification: 1/4′′-4′′*5.8m 6m 7.2m
Origin: Tianjin China
HS Code: 7306900000
   Thickness: 0.5mm - 1.0mm