Place of Origin : Tian Jin,China

We manufacture oil hardened & tempering spring wire, which can made to suspension spring, engine valve spring, mechanical spring. they have the feature of high strength, high toughness, high fatigue life.
Size: 2.0mm-15mm
Material: 55SiCr, 60Si2Mn, 50CrVa
Contact us: sam.winwin(at)yahoo.com