Compression spring

*Materials : Carbon steel ,
*Wire diameter: 0.4 MM
*Outline dimension: Φ3.0XL21 MM
*Surface Finsh: black oxide coating
*Shape of wire: coil
*Shape of products: cylindrical
*Ends: closed ends
*Capability : processing wire diameter from 0.08-8.00 MM
*Orders: OEM/ODM are highly welcomed