Refrigeration Equipment: Refrigeration systems or units, refrigeration compressors, evaporators, condensers, expansion devices, thermostats, valves, refrigerants, cooling towers, and more

Freezing and Cold-Storage Equipment: Condensing units, ammonia-based refrigeration systems, freezer and cold-storage cabinets, beverage chillers, ice-cream machines, ice-making machines, food freezing equipment, prefabricated cold storage facilities and related components, refrigerated warehouses, fresh‑keeping chambers, as well as refrigerated containers and frozen‑food packaging boxes, among others

Air-Conditioning Equipment: Central air-conditioning units, various types of air conditioners, rooftop air-conditioning units, VRF multi‑split systems, residential central air-conditioning systems, specialized air-conditioning equipment, air handling units (including air curtains, fresh-air handling units, air treatment units, mixing boxes, purification devices, filters, humidifiers, dehumidifiers, energy recovery devices, etc.), and building‑wide intelligent control systems

Heat-Pump Units: Heat-pump system units, heat-pump drying equipment, low‑temperature heat pumps, air‑source heat pumps, water‑source heat pumps, hot‑water engineering accessory systems, special‑application systems and related components

Cold‑Chain Logistics: Cold-chain logistics services (including fresh‑product delivery), cold-chain warehousing technology and equipment (cold-chain engineering installation), cold-chain transportation technology and equipment (refrigerated trucks, insulated vehicles), cold‑storage and freshness‑preserving technologies and equipment, as well as cold-chain digitalization solutions

Installation Materials, Tools, and Equipment for Refrigeration and Air-Conditioning Systems: Pipes, tubing, and associated fittings, fasteners and hardware, thermal insulation materials, valves, welding and brazing equipment, vacuum‑pumping and heating devices, testing instruments, leak detectors, and other related tools

Ventilation Equipment: Axial fans, centrifugal fans, fan rotors, blades, variable-frequency drives for fans, ductwork, air diffusers and related accessories, fire dampers, air valves and their components, coil‑type equipment, soundproofing materials, silencers, and other ancillary components for air-conditioning and ventilation systems