Indian standard specification for lubricating plugs 
Indian Standards Institution 
 - New Delhi  Indian Standards Institution  1969 
 - 7p. 
<br/><br/> IS 5019 : 1968 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lubricating Plugs<br/>NASA Thesaurus<br/>Standards
<br/><br/><label>Universal Decimal Class. No.: </label>083.7:621-725.3  / ISI