tension spring
Shuangyuan is specialized in producing precision small  tension spring with wire diameter from 0.1mm to 5.0mm.
Material stainless steel, music wire, spring steel like 65Mn etc
Surface finish: Galvanized, black, nickel-plated, powder coating
We are located in Xiamen (seaport city), China.
We have 10 years of experiences in producing the extension spring.
Our products are exported to many countries like Australia, USA, Italy etc.
Pls contact with us if you are interested it.