[Class : 17] Rubber,& Gutta Percha,& Mn, Asbestos,&Mica And Roods Made From&;These&;Materials And Not Included In Other Classes; Plastics&Nbsp;In&Nbsp;Extruded&Fonn For Use In Manufacturej& Packing, Stopping And Insulating Materials;& Flexible Pipes,& Not Of Metal