{HEAD ~ The solder alloy} preferably has a minimum tensile and shear strength of 3500 psi and {TAIL ~ a minimum conductivity} of 60 kilo mho cm 
preferably has
{ HEAD ~ The solder alloy } preferably has a minimum tensile and shear strength of 3500 psi and { TAIL ~ a minimum conductivity } of 60 kilo mho cm
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH