11 Control valves, namely, thermostatic valves as parts of heating installations; plumbing fittings, namely, one or two-way valves and balancing valves and fittings therefor for heating, cooling, steam generating, ventilation, water supply, air conditioning and sanitary purposes in buildings; pressure reducing valves, volume regulation valves and metal thermostatic control valves, all as part of heating and cooling installations and installations for degasification of water and for the separation of gas and water; thermostatic accessories for valves as part of heating and cooling installations and installations for degasification of water and for the separation of gas and water, namely, pressure regulators for water or gas apparatus and pipes; steam valves; manually operated plumbing valves for air conditioners; heating cartridges as part of heating and cooling installations; plumbing valves, namely, ball valves, pre-setting valves, shut-off valves, drainage valves, reset valves, valves for measuring pressure drop in fluids, flow valves, and valves for regulating flow, pressure, and/or temperature of water in conduits as part of heating and cooling installations