[Class : 19] Rigid Pipes And Valves (Non Metallic); Rigid Pvc Pipes; Polyethylene Pipes Used In Geothermal Heating And Cooling Systems; Drain Pipes, Not Of Metal; Drain Traps [Valves], Not Of Metal Or Plastic; Water Pipe Valves, Not Of Metal; Non Metallic Water Pipes; Plastic Pipes For Plumbing Purposes; Fittings, Not Of Metal, For Rigid Pipes; Rigid Pipes, Not Of Metal, For Building; Rigid Pipes Of Plastics [Other Than Parts Of Sanitary Installations]; Pipe Fittings [Junctions] (Non Metallic) Parts Of Rigid Water Pipes.