Section 07 Plastics and articles thereof; rubber and articles thereof 39 Plastics and articles thereof 39 23 Articles for the conveyance or packing of goods, of plastics; stoppers, lids, caps and other closures, of plastics. Commodity Code Description 39 23 10 Boxes, cases, crates and similar articles of plastics 39 23 21 Of polymers of ethylene 39 23 29 Of other plastics 39 23 30 Carboys, bottles, flasks and similar articles of plastics 39 23 40 Spools, cops, bobbins and similar supports of plastics 39 23 50 Stoppers, lids, caps and other closures 39 23 90 Other