3G E-Learning, <br/><br/>
Submerged arc welding :   beginner / 
3G E-Learning.  
 -  3G E-Learning FZ LLC,  c2016 
 - vi, 282p. :  color illustrations.  
<br/><br/>Includes index. 
<br/><br/>
<br/><br/><label>ISBN: </label>9789351159261 
<br/><br/><label>Dewey Class. No.: </label>671.5212 Su16 2016