Welding engineer 

 - New York :  Jefferson Publications,  1916-1974 
 - v. 
<br/><br/><label>ISSN: </label>0043-227X 
 = Welding engineer 
 = Weld. eng. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>METALURGIA<br/>TECNOLOGIA DEL TRABAJO DE LOS METALES<br/>SOLDADURA [OPERACION]
<br/><br/><label>Universal Decimal Class. No.: </label>669