1PCS Hole Dia 5mm 7mm Bore Slip Ring 2/4/6/12 Wires Hollow Shaft Conductive Ring for PTZ Dining Table Rotor DIY Accessries

1PCS Hole Dia 5mm 7mm Bore Slip Ring 2/4/6/12 Wires Hollow Shaft Conductive Ring for PTZ Dining Table Rotor DIY Accessries

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