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Physics Electrical equipment Slide rheostat 5 ohm 3A Adjustable resistance 16cm long Coil 7cm free shipping

Physics Electrical equipment Slide rheostat 5 ohm 3A Adjustable resistance 16cm long Coil 7cm free shipping

Physics Electrical equipment Slide rheostat 5 ohm 3A Adjustable resistance 16cm long Coil 7cm free shipping

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Physics electrical Slide rheostat 50 ohm 1.5A Adjustable resistance free shipping

Physics electrical Slide rheostat 50 ohm 1.5A Adjustable resistance free shipping

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Sliding rheostat Adjustable resistance 2 a 20 ohm Physics teaching instrument free shipping

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