[Class : 6] Couplers Of Brass, Bent Tubes, T Fittings, Rings, Sleeves, Extenders, Nipples, Reducing Fittings And Caps Of Metal, Clamping Sleeves For Tubes Of Copper, Nuts For Tubes Of Copper, Elbow Fittings Of Copper, Plates And Screws For Assembly, Screw Sets Of Brass, Shut Off Valves Of Metal.[Class : 11] Apparatus And Installations For Drinking Water Distribution And Sanitary Installations, Including Their Components And Frames; Central Heating Installations And Their Pipes; Level Control Valves, Mixing Valves; Heating Control Cabinets (Heating Installation Parts), Notched Protective Tubes With Fastening Handles, Water Heating Apparatus, Central Heating Boilers, Valves, Mixers, Air Release Valves, Thermostatic Valves And Heads, Retaining Valves, Complex Valves, Selector Valves, Filters (Parts Of Household Or Industrial Installations).