Welding techniques and uses in the U. S. A.
Welding techniques and uses in the U. S. A.
- 112 pages : illustrations, diagrams ; 24 cm
"Technical Assistance Mission No. 143."
56000235
Welding
TS227 / .O74 1955
"Technical Assistance Mission No. 143."
56000235
Welding
TS227 / .O74 1955