Hot-air, smoking, cooking, roasting and baking systems all for commercial cooking of food, each comprised of ovens, exhaust hoods, metal duct work for attaching to the exhaust hood, electronic controls and software sold therewith for the visualization, supervision and control of the systems, sold as a unit; industrial smokers for commercial smoking of foods; intensive cooling systems for commercial refrigeration and intensive blast chilling of foods, comprised of refrigerators, freezers, water chillers, electric compressors and electronic controls with operating software, all sold as a unit; commercial air conditioning systems for cooling, fermentation and drying of food, comprised of air conditioners, water chillers, electric compressors and electronic controls and software, all sold as a unit; and exhaust purification systems for use in the commercial food industry to reduce air pollution, namely, fans, exhaust hoods, oil heating boilers, steam heating boilers, water and air indoor radiant heating systems, dynamic water scrubbers and thermic reactors for emission control, connecting piping, electric controls and operating software, all sold as a unit

Maintenance and repair of commercial cooking apparatus, commercial smokers, commercial refrigerators and blast chillers and exhaust purification systems; machinery retrofit and installation of commercial cooking apparatus, commercial smokers, commercial refrigerators and blast chillers and exhaust purification system

Engineering services and plant engineering services for commercial cooking apparatus, commercial smokers, commercial refrigerators and blast chillers and exhaust purification systems