[Class : 17] Plastic In The Form Of Sheets, Blocks, Tubes & Rodes; Non Matallic Pipes Including Pvc Pipes, Corrrugated Pvc Plpes, Rigd Pvc. Pipes, Rigid Pvc Conduit Pipes, Pvc. In The Form Of Tubes & Fittings, Accessories & Parts Therefor; Reinforcing Materials For Pipes .