Most prior art refers to {TAIL ~ electrolysis} of the slip liquid as {HEAD ~ the primary cause} of porosity in castings 
Most prior art refers to { TAIL ~ electrolysis } of the slip liquid as { HEAD ~ the primary cause } of porosity in castings
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH