According to {TAIL ~ a potentially preferred practice}, {HEAD ~ heating} is carried out at a temperature of about 195 325° F. and a pressure of about 15 400 psi 
According to
According to { TAIL ~ a potentially preferred practice } , { HEAD ~ heating } is carried out at a temperature of about 195 325 ° F. and a pressure of about 15 400 psi
REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH