Section 07 Plastics and articles thereof; rubber and articles thereof 39 Plastics and articles thereof 39 01 Polymers of ethylene, in primary forms 39 01 10 Polyethylene having a specific gravity of less than 0.94 39 01 10 00 Polyethylene having a specific gravity of less than 0.94 Commodity Code Description 39 01 10 00 000 Polyethylene having a specific gravity of less than 0.94