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Help CenterManufacturer Professional Customized High Quality Garage Door Extension Spring
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Overhead Door Duplex Spring With New Design Stationary Cone
Quick DetailsPlace Of Origin: Anhui, China (Mainland)
Model Number: Customer Request
Style: Coil
Load Type: Torsion
Material: Steel, 82B,60Si2MnA
Usage: Industrial
Surface Treatment: Galvanized,Non-Galvanized,Oiled
Industrial Door: Torsion Spring
Lifting Door: Torsion Spring
Wire Diameter: 7.0-12mm
Sizes: 6''
Inner Diameter: 94mm,152mm
Sample Time: 3 Days
Payment Term: TT 30% Deposit 70% Balance Before Shippment
| Name | torsion spring for industrial door, garage door ,Garage Door Torsion Spring Overhead Door Torsion Spring |
| Wire Diameter | 1 3/4" ,2" , 25/8" , 3 3/4" , 5 1 /4" , 6" |
| Material | 72B ,82B , 60Si2MnA |
| Customizable | Can made by your drawings, sample and dimension |
| Surface Treatment | White zinc plating, Color zinc plating, Nickel plating, Chrome plated, Cataphoresis, Become black, Powder coating, Apply oil ,paint or as customers' request |
| Application | Luxury garage doors,factory lift doors,industrial door installation ,shutter doors in matching torsion and extension spring |
| Certification | ISO9001 |
| MOQ | Any small trial order is welcome |
| Deliver time | 7-15 workdays based on MOQ |
| Package | Standard Packaging, Wooden Carton Or as per customers' requirements |
| Payment term | 30%T/T deposit,70% before shipping |
Production Workflow Chart:
Packing & Shipping:
FAQ
1. How can I get a sample to check your quality?
After price confirmation, you can require for samples to check our quality.
If you just need a sample we have in our stock, we will provide you sample for free, as long as you afford the express freight.
2. How long can I expect to get the customized sample?
After you pay the sample charge and send us confirmed files, and the mold is existing in our factory, the samples will be ready in 10-15 working days;
If the mold is not existing, we need to open a new mold, the samples will be ready in 15-18 working days; The samples will be sent to you via express and arrive in 3-5 working days. You can use your own express account number or prepay us if you do not have an account.
3. What about the lead time for mass production?
Honestly, it largely depends on the order quantity and the season when you place the order. As usual, 20-35working days will be ok. If you are very urgent, we will try our best to do it.
4. What are your terms of delivery?
We accept FOB, CFR, CIF, etc. You can choose the one which is the most convenient or cost-effective for you.
5. What are your terms of payment?
We accept T/T, L/C, Paypal, Western Union, or 30% pre T/T 70% balance before shipment.
With regard to the spring of the lifting door, the lifting door rises and falls steadily under the action of spring force when lifting and falling.
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