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Combination welding : dot 819 : instructor's guide to competency-based eduction (CBE), instructor's guide

Combination welding : dot 819 : instructor's guide to competency-based eduction (CBE), instructor's guide - Washington, D.C. U.S. Department of Labor c1986 - [various pagings] ; 27 cm. 27 cm


Welding -- Instructor's Guide

TS 227 .C66 1986
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