Features: 1) With min. 0.1mm wire diameter 2) Different shapes of hooks available 3) Major materi Features:1) With min. 0.1mm wire diameter2) Different shapes of hooks available3) Major materials: music wire, stainless steel wire, oil tempered wire, spring steel4) An array of our precise extension machines with capacity of producing springs of min. 0.1mm wire diameter with projector, extension tester, and endurance tester, so that the quality of our product is best guaranteed

Precise Extension Springs