Next, {HEAD ~ the ends} of the heat pipe are compressed via the extruding shaft to render {TAIL ~ the end surface} of the heat pipe depressed from outside to inside 
Next , { HEAD ~ the ends } of the heat pipe are compressed via the extruding shaft to render { TAIL ~ the end surface } of the heat pipe depressed from outside to inside
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH