Product name: 305mm pressure coil spring (304 stainless steel/spring steel) Material options: ✔ 304 stainless steel (rust-proof) ✔ Spring steel (high elasticity) Core parameters: ▸ Free length: 305mm (±2%) ▸ Wire diameter range: 0.3mm-6mm ▸ Outer diameter range: 3mm-60mm ▸ Maximum compression ratio: ≤65% Product features: • 304 stainless steel: acid and alkali resistant/corrosion resistant, suitable for humid environments • Spring steel: higher elastic coefficient (78-82GPa) • Precision winding: ±5% load tolerance.
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