Fully buried return door

Fully buried return door, characterized by the door body being level with the door frame, automatic closing and pressing, beautiful appearance, good sealing and insulation. Suitable for cold storage, low-temperature processing workshops, insulation devices, with moderate door size and frequency of opening. The sealing strip is made of flexible plastic with built-in magnetic strips, which can effectively compensate for small manufacturing errors and provide excellent sealing performance. The plastic profile of the door panel is combined with the panel to form the outer shell, with polyurethane foam forming inside, no cold bridge, and good insulation performance. Equipped with self temperature limiting electric heating strips, it is used in industries such as food, supermarkets, warehousing, pharmaceuticals, and retail.