Air-Conditioning Equipment:Central air-conditioning units, air conditioners, rooftop air-conditioning units, VRF multi-split systems, residential central air-conditioning, special-purpose 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 equipment

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

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

Tools and Equipment for Refrigeration and Air Conditioning:Specialized tools, welding and brazing equipment, vacuum‑evacuation 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 Equipment for Refrigeration and Air-Conditioning Systems:Piping, welding consumables, sealing materials, fasteners, hardware, thermal insulation materials, heat-conducting components, and valves（Copyright of this content belongs to Juzhan. Reproduction without permission is prohibited）