... spring 1)wire diameter:0.09-5.0mm 2)produce with samples and technique drawings 3)high precision 2012 ... New Style Stainless Steel Extention spring for toySprings made by our CNC spring machine. We have ... Item nameExtention springItem numberES001Material availablecarbon steel wire, stainless steel wire, spring steel, brass, aluminum, copper, alloy, etcSurface treatmentpolishing, ...