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IEC 60519-21:1998/COR1:1999 ed1.0

Заменен
Corrigendum 1 - Safety in electroheat installations - Part 21: Particular requirements for resistance heating equipment - Heating and melting glass equipment — 0 стр.
IEC 60519-21:1998/COR1:1999 ed1.0
Заменен
IEC 60519-21:2008 ed2.0
Отменен