Product Description
The door body structure:
5.0mm thick steel plate +50mm*50mm*5.0mm square tube frame (filling material is rock wool) +5.0mm thick steel plate. The door frame is welded with 5mm*100mm*5.0mm square tube.There are two Back-flap hinges on the side of the door.The upper and lower sides of the door have a movable gate with a diameter of 15mm.The effective length of the bolt is 40mm.The door is equipped with an opening/closing control door bolt.
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