TY  - BOOK
ED  - Bureau of Indian Standards
TI  - Covered electrodes for metal arc welding of structural steel, Part 1 :for welding products other than sheets
U1  - 621.791.753.042.4 B. I. S. 
PY  - 1974///
PB  - Bureau of Indian Standards
KW  - Welding products
ER  -