Section 07 Plastics and articles thereof; rubber and articles thereof 39 Plastics and articles thereof 39 17 Tubes, pipes and hoses, and fittings therefor (for example, joints, elbows, flanges), of plastics. 39 17 33 Other, not reinforcced or otherwise conbined with other materials, with fittings Commodity Code Description 39 17 33 00 Other, not reinforcced or otherwise conbined with other materials, with fittings