An object of at least one of {HEAD ~ the present inventions} can be achieved by providing {TAIL ~ a method} for manufacturing an enhanced heat transfer tube 
An object of at least one of { HEAD ~ the present inventions } can be achieved by providing { TAIL ~ a method } for manufacturing an enhanced heat transfer tube
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH