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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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