{TAIL ~ A method} for forming an end surface of a sealed hollow tubular heat pipe that is vacuumed and filled with working fluid with at least one protruding end, comprising {HEAD ~ steps} of: 
{ TAIL ~ A method } for forming an end surface of a sealed hollow tubular heat pipe that is vacuumed and filled with working fluid with at least one protruding end , comprising { HEAD ~ steps } of :
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