Expansion 1.2mm Wire Dia Spring Tension Extension Expanding Return Coil Springs

Size：Wire Diameter x Outer Diameter x Length Wire Diameter : 1.2mm Outer Diameter: 8mm - 14mm Length : 30mm - 328mm Material: Springsteel / 65Mn steel Process: 65Mn steel quenching processing, blackening treatment Color: Springsteel Bark Grey / 65Mn steelBark

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