NBN 838-1970
Seamless duct ultrasonic inspection. Longitudinal wave defect detection

Standard No.

NBN 838-1970

Release Date

1971

Published By

BE-NBN

Latest

NBN 838-1970

NBN 838-1970 history

• 1971 NBN 838-1970 Seamless duct ultrasonic inspection. Longitudinal wave defect detection