NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Technical rule
[CURRENT]
DIN 40686 Beiblatt 1
DIN 40686 Beiblatt 1
Surfaces of dense ceramic components for electrical engineering; indications in drawings
Title (German)
Oberflächen dichter keramischer Werkstücke für die Elektrotechnik; Angabe in Zeichnungen