Heavy Duty Black Coated Garage Door Extension Spring
||Customized High Quality Outdoor Extension Spring For Gymnastic Trampoline
||Salt Spray Test
||poly bag inside,carton box outside
Extension springs absorb and store energy as well as create a resistance to a pulling force. Extension Springs are attached at
both ends to other components. When these components move apart, the extension spring will pull components together again.
Material & Suface Treatment
Non-ferrous Alloy Steel
Confirm Wire Diameter
We can produce all kinds sizes of wire Diameter. Available Wire Diameter :
Comfirm Outside Diameter
Comfirm Max Extended Length
Comfirm Loop Length
Comfirm Loop Opening
What is the surface treatment of our springs
Nickel plating,zinc plating, or power coating (anti rust)
What is the Applications of our springs?
Electronics, electrical appliances, toys, locks, stationery, baby carriage, bicycle, gifts, crafts, kitchen appliances, cameras, printers, office equipment, precision equipment and various vehicles
If Ask me, What is the Most Important thing in the World?
Different prople, different ideas. But today let me tell You the Truth.
with the development of the world, Poor Enviroment, poor Products, and dangerous life.....
However, HERSHEY Brings healthy ,green, and safty all around the world..
After That,Sunshine Smile is Always around all human beings.
They See Hope for Everything and Know How to Deliver the concept of healthy &safty..
Hershey spring Brings Brightness, Warmness and high quality products,.
Let us Know What is the most important thing!!!
1. FedEx/DHL/UPS/TNT for samples, Door-to-Door;
2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;
3. Customers specifying freight forwarders or negotiable shipping methods!
4. Delivery Time: 3-5 days for samples; 5-25 days for batch goods.
1. Payment: T/T, L/C, Western Union, MoneyGram,PayPal,Etc.
2. MOQ: more than 1pc
3. Warranty : according to the certain product
4. Package Informations: poly bag, box, carton.
Why choose us?
- Philips, Apple and Hitachi source from us
- More than 80 sets of advanced spring machines and testing equipments.
- Big production capacity, fast delivery
- Strict QC checking before delivery
- OEM/ODM services available, help you on designing
- 7*24 hours online service/after service
- Prompt quotation for your inquiry.
- More than 22 years experience in spring industry
- Professional spring manufacturer offers competitive price