TY  - BOOK
AU  - Indian Standards Institution
TI  - Recommended Practice for Ultrasonic Testing of Butt Welds in Ferritic Steel (IS : 4260 - 1986)
U1  - IS : 4260 - 1986 
PY  - 1986///
CY  - New Delhi
PB  - Indian Standards Institution
KW  - Indian Standard - IT
N1  - IS : 4260 - 1986
ER  -