Thin, needle-like or sliver-like protrusions (ranging from 3 to 6 mils [76 to 152 micrometers])
found on steel plates that have been blasted with steel shot or grit.
Thin, needle-like or sliver-like protrusions (ranging from 3 to 6 mils [76 to 152 micrometers])
found on steel plates that have been blasted with steel shot or grit.