ONORM EN 28654-1993
Colours of gold alloys - Definition, r?nge of colours and designation (ISO 8654:1987)

Standard No.

ONORM EN 28654-1993

Release Date

1993

Published By

AT-ON

Latest

ONORM EN 28654-1993

ONORM EN 28654-1993 history

• 1993 ONORM EN 28654-1993 Colours of gold alloys - Definition, r?nge of colours and designation (ISO 8654:1987)