Compression Spring made of various material with different finish; Made in ISO/TS16949:2002 and ... Name: Compression SpringFeatures: Wire Diameter: 0.01 to 20mm;Raw material: stainless steel, carbon steel, spring steel, alloy spring steel, ... and other countries and rigionsOEM/ODM services.Applications: All kinds of cars, machinery, home appliance, electronic products, electric appliance, cameras, ...