{HEAD ~ The splitting} up of the remaining fraction high in {TAIL ~ plastics} into the light fraction and the heavy fraction may take place using air sizing 
{ HEAD ~ The splitting } up of the remaining fraction high in { TAIL ~ plastics } into the light fraction and the heavy fraction may take place using air sizing
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH