{TAIL ~ The present invention} is also directed to {HEAD ~ a process} for manufacturing a gypsum based substrate 
{ TAIL ~ The present invention } is also directed to { HEAD ~ a process } for manufacturing a gypsum based substrate
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH