NA <br/><br/>
ETD21-electric welding equipment iect/tc26 and ISO/tc44 / 

 - New Delhi,  Bureau of Indian Standards,  c2006. 
 - NA  ill. ;  30 cm.  
<br/><br/><label>ISBN: </label>NA 
<br/><br/><label>Dewey Class. No.: </label>671.22