Store kornorienterede elektriske plader fremstilles af varmtvalsede bredbånd af siliciumlegeret stål af forskellig tykkelse, hvis kornstruktur er blevet ensrettet for at opnå en høj magnetisk ledeevne.
GOES are produced from hot-rolled coils of silicon alloyed steel of different thicknesses of which the grain structure is uniformly directed in order to allow for magnetic conductivity with a high degree of efficiency.