Classification coding and marking of covered electrodes for metal-arc welding :  B. S. 1719. 

 - London:   British Standards Institution  1963.  
 - 24 p. :  tables ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Welding
<br/><br/><label>Dewey Class. No.: </label>671.52