These manufacturing methods produce pistons having {HEAD ~ a significantly lower cost} per {TAIL ~ unit} than pistons manufactured by a machining process wherein the piston core is machined, a seal is manufactured, and the core and the seal are mated to form the finished piston 
per
These manufacturing methods produce pistons having { HEAD ~ a significantly lower cost } per { TAIL ~ unit } than pistons manufactured by a machining process wherein the piston core is machined , a seal is manufactured , and the core and the seal are mated to form the finished piston
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH