Systems for distribution of air as part of HVAC systems, comprised of pipes, fittings, ducts, registers and valves; water heaters and water coolers; sewage disposal plants; flushing devices in the nature of toilet flush valves; water closet filling valves being manually operated plumbing valves; irrigating equipment, namely, irrigation sprinklers and irrigation spray nozzles; complete micro-irrigation units for agricultural use, comprising, valves, filters, regulators, pipes, tubing, emitters...

Systems for distribution of air as part of HVAC systems, comprised of pipes, fittings, ducts, registers and valves; water heaters and water coolers; sewage disposal plants; flushing devices in the nature of toilet flush valves; water closet filling valves being manually operated plumbing valves; irrigating equipment, namely, irrigation sprinklers and irrigation spray nozzles; complete micro-irrigation units for agricultural use, comprising, valves, filters, regulators, pipes, tubing, emitters...

Education; educational and training services; publishing services (including electronic publishing services); provision of non-downloadable electronic publications