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Product Description
     The inner frame can be disassembled. When pushed horizontally to one side, the inner frame can be opened and installed on the ceiling as the entrance and exit for equipment maintenance.            The door hinge type repair opening is composed of the outer frame and the door plate, which is in the form of a valve. It can be opened with a gentle press of the door plate and installed on the ceiling as the entrance and exit for equipment maintenance.            Galvanized overhaul door is composed of inner and outer frames and door panels. The inner panels can be easily removed from the outer frames. The inner panels can be tightened by pressing lock and outer frames. Usually, the galvanized overhaul door is installed on the side walls of ventilation pipes for observation ports during equipment overhaul or on the side walls of air conditioning cabinets for overhaul doors.            Aluminum alloy overhaul openings are composed of inner and outer frames. The inner frames are in the form of valves. They can be opened by turning the tap switch of the basin with screw batches. They are installed on the ceiling as the entrance and exit for equipment overhaul.