providing a mold module for placing the sealed hollow tubular heat pipe therein, wherein the mold module having a longer length than the heat pipe has, inside of the mold module further comprises a mold chamber, having the same diameter as {HEAD ~ the outer diameter} of {TAIL ~ the heat pipe} has, 
providing a mold module for placing the sealed hollow tubular heat pipe therein , wherein the mold module having a longer length than the heat pipe has , inside of the mold module further comprises a mold chamber , having the same diameter as { HEAD ~ the outer diameter } of { TAIL ~ the heat pipe } has ,
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