TY  - BOOK
ED  - Indian Standards Institution
TI  - Code of practice for training and testing of oxyacetylene welders
U1  - 671.522021 
PY  - 1962///
CY  - New Delhi
PB  - ISI
KW  - Gas welding
KW  - Oxyacetylene welders
KW  - Standard
ER  -