NF A49-051:1991
Steel tubes. Continuous character marking and colour coding for material identification.

Standard No.

NF A49-051:1991

Release Date

1991

Published By

Association Francaise de Normalisation

Latest

NF A49-051:1991

Replace

NF A49-051:1978

NF A49-051:1991 history

• 1991 NF A49-051:1991 Steel tubes. Continuous character marking and colour coding for material identification.
• 0000 NF A49-051:1978