Revisions to structural welding code. 

 - [s.l.] :  [s.n.],  1973. 
<br/><br/> La biblioteca posee la primera version 
<br/><br/><label>Standard No.: </label>AWS D1.1 Rev 1-73 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SOLDADURA