3). Real hard problem -
     Our main product is rails for the railway, each rail has its own id
(like a serial
     number but more complex), and traceability of each rail through the
plant is
     very important. What we would like to do is attach a barcode to the
rail
as the
     rail id is stamped into the rail. This would allow us to use automated
scanning
     of rails through the mill. The problem is the temperature of the rail
at
     stamping time is 1700 degrees (red hot). Anybody have an idea on how to
     apply a tag. You cannot make any marks on the rail (considered a
defect)
and
     you cannot rivet to the rail (creates a possible stress point).

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Would it be possible to actually embed a "label" into the rail?
By this I mean a piece of steel with the barcode on it that could be
"pressed" into the rail
while it is in the 1700 degree range.

Terry Simpkins