[Class : 6] Metal Pipes Included In Class 6; Stainless Steel Pipes And Tubes; Elbows Of Metal For Pipes; Branching Pipes Of Metal; Metal Pipe Fittings; Rosettes Being Metal Pipe Fittings; Pipe Fittings [Junctions] Of Metal; Metal Fittings For Rigid Pipes; Metal Fittings For Compressed Air Lines, Metal Fittings For Flexible Pipes.

[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...

[Class : 17] Flexible Pipes, Not Of Metal; Pvc Pipe And Fittings; Hdpe Pipes, Cpvc Pipes, Lldpe Pipes; Tubes And Hoses, Not Of Metal; Pipes Of Plastic; Compressed Air Pipe Fittings; Fittings, Not Of Metal, For Pipes; Pipe Joint Tape; Pipe Insulation Materials; Seals For Pipe Connections; Non Metal Pipe Couplings; Non Metal Pipe Joints; Rubber Couplings For Pipes; Pipe Elbows...