{TAIL ~ The invention} relates to {HEAD ~ an arrangement} and a method for production of a three dimensional product by successive fusing together of selected parts of powder layers applied to a work table 
{ TAIL ~ The invention } relates to { HEAD ~ an arrangement } and a method for production of a three dimensional product by successive fusing together of selected parts of powder layers applied to a work table
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD 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