Hangzhou Norvee Machinery Co., Ltd.

China Manufacturer with main products: Gas Springs / Struts, Automotive Gas Springs, Cabinet Gas Springs, Stainless Steel Gas Springs, Spiral Spring, Torsion Spring, Hardware Parts

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Zinc Spring Steel Medium Duty Extension Springs support OEM

Payment Terms: L/C
Update Time: 3/17/2014
Place of Origin: Beijing in China



1. Material:spring steel, 82B, 65Mn, stainless steel, alloy steel

2. Yellow zinc plated

3. Made by your drawing

4. More then 10 years’ experience

5. Competitive price and best quality

6. More then 10 years’ experience

7. Advanced manufacturing and testing equipment

8. Competitive price and best quality

9. Provide OEM service



Extension spring can used in toy,  sofa, beds and seats of cars automotive, medical device, electronics,  etc.




Carbon steel, spring steel, stainless steel, alloy steel, oil tempered wire

Wire diameter:


Surface treatment 

zinc, nickel, become black, powder coating, cataphoresis 

or as your request




Extensively used for the base of the bicycles and electrombile


Inner plastic bags and outer cartons or as per customers' requirements

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Ms. Lisa Wang