3G handy guide :  welding / 
3G E-Learning. 
 - New York:   3G E-Learning,   c2019. 
 - ix, 209 p. :   col. ill. ;  24 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>978-1-98462-566-3 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Welding.