Air-Conditioning Equipment:Central air-conditioning units, air conditioners, rooftop air-conditioning units, VRF multi-split systems, residential central air-conditioning, specialized air-conditioning equipment, air-handling systems, and building-intelligent control devices

Ventilation Equipment:Fans (axial-flow, centrifugal), fan rotors, fan blades and accessories, fan inverters, wall-mounted fans, rooftop fans, ceiling-mounted fans, ductwork, air diffusers and related components, dampers and associated parts, coil units, sound-insulating materials, silencers, and other spare parts for air-conditioning and ventilation systems

Refrigeration Equipment:Refrigeration systems or units, refrigeration system components and accessories, freezing and refrigeration equipment, quick-freezing equipment for food, modular cold storage facilities, refrigerated warehouses and freezer rooms, transport refrigeration units, refrigerated containers, frozen packaging boxes, and modular cold-storage accessories

Heating Equipment:Burners and related components, infrared heaters, heating cables, electric heating film systems, boiler auxiliaries, and supporting equipment

Tools and Equipment for Refrigeration and Air Conditioning:Specialized tools, welding and brazing equipment, vacuum-pumping and refrigerant-charging devices, testing instruments, leak detectors, temperature meters, cleaning equipment and materials, dehydration and water-treatment systems, and processing machinery

Installation Materials and Components for Refrigeration and Air-Conditioning Equipment:Piping, welding consumables, sealing materials, fasteners, hardware, thermal insulation materials, heat-conducting elements, and valves（Copyright of this content belongs to Juzhan. Reproduction without permission is prohibited）