{TAIL ~ The process} 1, wherein the tubular film is subjected to {HEAD ~ biaxial orientation} before reaching nip rolls 
{ TAIL ~ The process } 1 , wherein the tubular film is subjected to { HEAD ~ biaxial orientation } before reaching nip rolls
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH