Relief valves -1 45181 D  Safety valve operation /  [video recording] 
ITC Learning 
 - [s.l]  ITC Learning;  1980 
 - 1 digital video disc (DVD: 45min):  digital;  12cm. + 1 relief valves vol 1 instructor guide (45181T) +1 relief valves vol 1 student workbook (15181W). 
 - Piping & valve maintenance .
<br/><br/> Library internal view only. 
<br/><br/><br/>Disc compatible with computer and DVD player. 
<br/><br/><label>ISBN: </label>MED0002418(Local) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Safety valve--operation<br/>Piping<br/>Valve maintenance