Description:
Product name: compression spring 
Material: 304 stainless steel
 Size: (wire diameter(d)*diameter(D)*spring length mm)
wire diameter x diameter: 0.2x2 /0.2x2.5/0.2x3/0.2x4
                                          0.3x2/0.3x3/0.3x4/0.3x5/0.3x6
                                          0.4x3/0.4x4/0.4x5/0.4x6/0.4x7/0.4x8
 spring length=5/10/15/20/25/30/35/40/45/50mm

Feature:
extremely good surface finish: the steel wire surface is uniformly polished and very smooth
good spring elasticity: the spring is of good elasticity and can be used for long time without deformation
non-corrosive: the spring is made of 304 stainless steel, so it will never rust
ultra-precision manufacturing technology: the manufacturing process of this spring has multiple processes, its size varies, and there are many specifications.