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