00450nam a22001337a 4500999001700000100002100017100001100038245008500049260002900134300001000163700004200173942001100215952009000226  c58362d58359  aMuhammad Zaheer   a07ME21  aCase Study of Piping System Design and its Maintenance in National Refinery Ltd.  aNawabshah:bQUEST,c2007  a105p.  aDepartment of Mechanical Engineering   cTHESIS  00104070aQUESTCLbRESEARCHd2018-04-19l0pMEP/21-250r2018-04-19 00:00:00yTHESIS