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        • Fine spring automatic production line
        • Valve automatic spring production line diagram
        • Suspension damping spring production line
        • CNC 7 axis forming machine
        • Measuring instrument
        • 20006N spring tension and compression testing machine
        • Material tensile testing machine
        • 5000N spring tension and compression testing machine
        • Torque testing machine
        • Measuring instrument
        • projector
        • Vernier caliper
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