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Multi-disc brushless permanent magnet stepping motor
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Ruler-shaped brushless permanent magnet linear stepping motor
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Internal tooth wheel speed
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Double-bevel-gear flywheel transmission
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Permanent-magnet synchronous device
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Electromagnetic synchronizer
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Automatic Gear speed changer
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Automatic catch gear-shift mechanism
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Cylinder-shape linear stepper motor
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Gear-shift mechanism
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Bevel gear speed changer
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Card key flat beam padlock
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Nail lock-insertion with ring key
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Jet-suction type dust-removing fan
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