CROMPRESSED AIR AND GAS INSTITUTE <br/><br/>
PREVENTIVE MAINTENACE FOR ROCK DRILLS 

 - 0 
 -  SECOND EDITION  1974 
 - 107 pag  20 cm 
 - 0  0 .
<br/><br/>LUBRICATION-MAINTENANCE 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CIENCIAS PURAS
<br/><br/><label>Dewey Class. No.: </label>552  / C73