3G E-Learning 3G handly guide : welding / Authored and Edited by 3G E-learning LLC - 209 pages : color illustrations ; 24 cm Includes bibliographical references and index. ISBN: 978-1-98462-566-3 Subjects--Topical Terms: weldingWelding technologyMetalworking Dewey Class. No.: 671.52 T5311 2019