We are specialized in all various kinds of extension springs.ISO9000/9001/9004/2000Certificate

We are specialized in all various kinds of extension springs:

1). Wire diameter from 0.1mm-10mm.

2). Material: carbon spring steel, alloy spring steel, stainless spring steel, etc.

3). Finish: black oxide, zinc/nickel/chrome plating, power coating, passivate, oiled to prevent rust, and so on.

4). High good quality and long service-life.

5). Good hardness and resistance to both high and low quality.

6).We can offer you samples after you accept our price.