Electromagnetic Door Holder

Double Smokeproof Door Electromagnetic Door Holder Reverse Current Protection

High Efficiency Electromagnetic Door Holder Wall Mounted Low Power Consumption

24 Volt Magnetic Door Holder Floor Mounted , Durable Magnetic Fire Door Retainers

60kgs 130lbs Electromagnetic Door Holder Floor Mounted With Emergency Release Button

24 Volt Electromagnetic Fire Door Holders , Electric Magnetic Door Holder High Temperature Resistant

Commercial Magnetic Door Holder , Durable Wall Mounted Magnetic Fire Door Holder

Wall Mounted 24v Electromagnetic Door Holder Low power consumption 86 x 70 x 43mm

Floor Mounted 12VDC Electromagnetic Door Holder 60kgs 130lbs Holding Force

Custom Wall Mounted Magnetic Fire Door Closers , Heavy Duty Magnetic Door Holder

24v 60kgs 130lbs Fire Alarm Door Holder , Durable Magnetic Fire Door Retainers