Radiant Floor Cooling and ventilation systems, district cooling and heating systems, snow and ice prevention systems, composed primarily of tubes, pipes, heat meters, valves, controllers and manifolds through which water circulates and structural parts therefor; dripper irrigation systems and sustainable onsite water recycling and wastewater treatment systems, composed primarily of pipes, tubes, sewer pipes, valves, filters and regulators; tap water supply and distribution systems in the nature of water purification installations, composed primarily of pipes, tubes, valves, filters and regulators; drainage systems in the nature of water conditioning units, composed primarily of pipes, tubes, sewer pipes, valves, filters and regulators; sewerage systems and sanitary piping in the nature of sewage purification installations composed primarily of tubes, pipes, valves, controllers and regulators; air-conditioning units, ceiling fans, electric fans, electric heating fans, electric fan heaters, fans for air-conditioning apparatus, ventilating fans for commercial and industrial use; structural parts for all the aforementioned goods

Repair and installation services, namely, the installation of heating, cooling and environmental control systems primarily using solar energy, renewable energy resources, geothermal heat pumps, and controls