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JP155R Mag-mate | Magnetic Jig, On/Off, 155 Lbs Capacity, With Base | Raptor Supplies United Kingdom
Is there any simple, low-energy way to make a permanent magnet able to turn 'on and off' (similar to an electromagnet)? - Quora
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Portable Electronic Magnetic Pole Detector LED Lights Sensitivity: ±15 mT on /off | Magnosphere Shop
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Magnetpro Multipurpose Switch Magnet, Magnet System with 300 kg Extraction Force, On/Off Magnet for Lifting, Working & Welding Positioning, Liquid Filtration, Automation, Metal Separation : Amazon.co.uk: Business, Industry & Science
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Part Number | Magnet Blocks with Three Side Attraction - ON / OFF Switchable | MISUMI | MISUMI South East Asia
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