63 ABNT NBR IEC 60439-2-2004 2004-08-31 Portuguese Low-voltage switchgear and controlgear assemblies Part 2: Particular requirements for busbar trunking systems (busways) 64 ABNT NBR 15136 Verso Corrigida-2004 2004-08-31 Portuguese Aeroespace - Key characteristics management 65 ABNT NBR NM ISO ...