TY  - BOOK
AU  - Bureau of Indian Standards.
TI  - Recommended practice for ultrasonic testing of butt welds in ferritic steel 
SN  - 0
U1  - 4260-2004 
PY  - 2020///
CY  - New Delhi
PB  - Bureau of Indian Standards
KW  - Indian Standards - Metallurgy
ER  -