Sen K D Ed. <br/><br/>
Chemical hardnes 

 -  1993 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>45084 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chemical combination
<br/><br/><label>Dewey Class. No.: </label>E:21un1,N66, N3