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Patent achievements
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2022
Digital zone control valve
Utility model patent certificate
2022
Air-conditioning noise reduction air duct
Utility model patent certificate
2022
High-efficiency energy-saving air-conditioning refrigeration equipment
Utility model patent certificate
2022
Intelligent indoor ventilation device for building
Utility model patent certificate
2022
Continuous feeding type vaccine cold storage device
Utility model patent certificate
2022
Ventilation device for control box
Utility model patent certificate
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