Of polymers of styrene

39.15 - Waste, parings and scrap, of plastics. 39 15.10 - Of polymers of ethylene - Of polymers of styrene 39 15.30 - Of polymers of vinyl chloride 3915.90 - Of other plastics 39 15.20 The roducts of this heading may consist of broken or worn articles of plastics, clearly not usab e for their original purposes, or of rnanufacturin waste shavings, dust, trimmings, etc.). Some waste can be reused as moulding material, varnis base, illers, etc. f % I. The headin , however, does not apply to waste, parin s and scrap of a single thermoplastic material, transformefinto primary forms (headings 39.01 to 39.16. Waste, arings and scrap of a single thermosetting material or of two or more thermoplastic materia s mixed together, even if transformed into primary forms, are covered by the headmg. f' The heading abo excludes waste, parings and scrap, of plastics, containing precious metal or precious metal compounds, of a kind used principally for the recovery of precious metal (heading 71.12).