Constant Force Spring 1) Thickness:0.10mm- 2.00mm 2) Shorter lead time 3) Production History:18 years 4) Competitive prices Constant Force Spring / Power SpringMeterial: 62Si2MnA, 55CrSi, SUS301,SUS304, Alloy etc.Thickness: 0.10- 2.00 mmShorter lead timeCompetitive pricesProduction History:18 years