[Class : 17] Flexible Pipes, Non Metallic Flexible Tubes, Non Metal Fittings For Rigid Pipes, Elbows, Not Of Metal, For Rigid Pipes, Fittings (Compressed Air Pipe ), Not Of Metal, Flexible Pipes, Flexible Plumbing Pipes Of Plastic, Couplings (Non Metallic ) For Flexible Pipes, Non Metallic Junctions For Flexible Pipes, Pipes Made Of Synthetic Flexible Material, Junctions, Not Of Metal, For Flexible Pipes, Elbow Joints (Non Metallic ) For Flexible Pipes, Polyvinyl Chloride Resins [Semi Processed], Glands For Pipes, Non Metallic Pipe Muffs, Pipe Couplings And Joints, Not Of Metal, Pipe Linings (Non Metallic ), Pipe Spacers (Non Metallic ), Pipe Unions (Non Metallic ), Fittings (Compressed Air Pipe ), Not Of Metal.