NF J31-540:1947
SHIPBUILDING. CIRCULAR INSPECTION HOLE COVERS. PN 6.

Standard No.

NF J31-540:1947

Release Date

1947

Published By

Association Francaise de Normalisation

Latest

NF J31-540:1947

NF J31-540:1947 history

• 1947 NF J31-540:1947 SHIPBUILDING. CIRCULAR INSPECTION HOLE COVERS. PN 6.