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Specifications:Emergency lock set up instructions:This product is appropriate for every kind of door panels, thickness of 25MM---45MM, metal cord 1.8 meters long, storage door.Disassembly earlier than installation:1., in the door from the floor 70CM---120CM drill a diameter of 2.4CM round hole, door panel to the outside of the circular hole relative place do two 4MM * 5MM anti groove.2. keep the tail of the wire rope, put on the entry board from the outside, and press the lock on the entry board.3. press the 2 nuts in the course of the cord rope and screw them on the lock one through one.4. finally, the wire rope is hooked up to the power failure management of the management motorThis product adopts the copper lock core, the marble cipher is close, the mutual opening charge is very low:1. open the package.2. untie the wire rope.3. screw nut.Garage door emergency lockSize : Lock 5 cm length, 2.2 cm in diameterMaterial: zinc alloy base , conceal plate,steel pipe,hose .Surface treatment : bright chrome plating.Suitable for storage door, doorPackage contains1X lock2X key