NEN 437-1957
Mounting parts for movable casings, steel casings and elbows

Standard No.

NEN 437-1957

Release Date

1957

Published By

NL-NEN

Latest

NEN 437-1957

NEN 437-1957 history

• 1957 NEN 437-1957 Mounting parts for movable casings, steel casings and elbows