Govt of U.S <br/><br/>
Specifications for welding Part-I General 
Govt of U.S 
 - USA  Govt printing office  1940 
 - vi, 64 p.  ill.  20 cm. 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE
<br/><br/><label>Dewey Class. No.: </label>623.8432  / SPE