Trace elements and pinholes in gray iron. 

 - Des Plaines, Illinois:   American Foundrymen’ s Society,   [1965].  
 - 33 p. :  ill. ;  29 cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Iron--Metallography
<br/><br/><label>Dewey Class. No.: </label>669.141