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SecureMyDoor Electromagnetic Door Holder Fire Door Retainer with 100lbs / 45kg Holding Force with Red Override Button - 24Vdc : Amazon.co.uk: DIY & Tools
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SecureMyDoor Electromagnetic Door Holder Fire Door Retainer with 100lbs / 45kg Holding Force with Override Button - 24vdc : Amazon.co.uk: DIY & Tools
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