6
Metal valves not being part of machines; manually operated metal valves; regulating valves of metal not being part of machines; control valves of metal not being part of machines; balancing valves of metal not being part of machines; metal valves for controlling the flow of fluids in pipelines; metal valves for water pipes
9
Controllers (regulators); temperature controllers; heat regulators; measuring and signaling apparatus and instruments; monitoring apparatus and instruments; flow meters and fluid flow meters; flow meters and fluid flow meters for valves; flow meters and fluid flow meters for heating installations, cooling installations, and domestic water distribution installations
11
Apparatus and installations for heating, cooling, and domestic water distribution; valves for heating installations, cooling installations, and domestic water distribution installations; regulating valves for heating installations, cooling installations, and domestic water distribution installations; control valves for heating installations, cooling installations, and domestic water distribution installations; balancing valves for heating installations, cooling installations, and domestic water distribution installations; automatic temperature regulators for central heating radiators