[Class : 6] Pipes And Tubes Of Metal; Metal Pipes For Liquid And Gas Transfer; Metal Hoses For Plumbing Use; Floor Drains Of Metal; Sewer Pipes Of Metal; Ducts Of Metal For Ventilating Installations; Junctions Of Metal For Pipes; Pipe Muffs Of Metal; Collars Of Metal For Fastening Pipes; Skelps; Pipe Spacers Of Metal; Pipe Extensions Of Metal; Couplings Of Metal For Tubing; Pipes, Tubes And Hoses, And Fittings Therefor, Including Valves, Of Metal.[Class : 11] Sanitary And Bathroom Installations; Sanitary Installations, Water Supply And Sanitation Equipment; Waste Pipes For Sanitary Installations; Flexible Pipes Being Parts Of Sink Plumbing Installations; Flexible Pipes Being Parts Of Shower Plumbing Installations; Flexible Pipes Being Parts Of Bath Plumbing Installations; Heating, Ventilating, And Air Conditioning And Purification Equipment (Ambient); Flues For Ventilating Apparatus.[Class : 17] Flexible Pipes, Tubes, Hoses And Fittings Therefor (Including Valves), And Fittings For Rigid Pipes, All Non Metallic; Non Metallic Couplings For Pipes; Hose Bandages; Pipe Extensions (Non Metallic ); Non Metal Pipe Couplings And Joints; Insulation Jackets For Industrial Pipes; Casings Of Rubber For Tubes; Pipe Muffs, Not Of Metal; Plastics In The Form Of Sheets, Films, Blocks, Rods And Tubes; Fittings, Not Of Metal, For Rigid Pipes; Couplings (Non Metallic ) For Flexible Pipes; Hose Pipes Made Of Rubber; Rubber Tubes And Pipes; Flexible Hoses, Not Of Metal; Flexible Plumbing Pipes Of Plastic; Low Density Synthetic Plastic Pipe With Mechanical And Flame Resistance, Thermal And Acoustic Insulation; Insulated Pipes.[Class : 19] Plastic Pipes For Plumbing Purposes; Plastic Pipes [Rigid] For Water; Rigid Pipes, Not Of Metal, For Building; Rigid Pipes And Valves Therefor, Non Metallic.