Section 07 Plastics and articles thereof; rubber and articles thereof 39 Plastics and articles thereof 39 17 Tubes, pipes and hoses, and fittings therefor, of plastics 39 17 31 Of amino resins; of phenolic resins; of chemical derivatives of natural rubber 39 17 31 23 Of amino resins; of phenolic resins; of chemical derivatives of natural rubber Commodity Code Description 39 17 31 23 00 Of amino resins; of phenolic resins; of chemical derivatives of natural rubber
