Warring, R.H.  <br/><br/>
Seals and packings  (Book) 

 - Morden, Surrey  Trade and Technical Press Ltd.  1967 
 - 264 p.: 21 cm. 
<br/><br/><label>ISBN: </label>854611134 
<br/><br/><label>Universal Decimal Class. No.: </label>621.798.18:621.792.8 WAR  / 16706