Steel Wires for Mechanical Spring – Oil Hardened & Tempered & Lead Patented

We are offering both oil-hardened and tempered, and lead patented steel wires for mechanical springs. Fine precision Superior surface quality Customizable JIS G 3521 Hard drawn spring steel wire Chemical Composition 0.2mm ~ 0.45mm Wire Grade C Si Mn P S JIS G 3521 SWB 0.69-0.76 0.15-0.35 0.30-0.60 max0.030 max0.030 0.79-0.86 0.15-0.35 0.60-0.90 max0.030 max0.030 […]

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