00306nam a2200121Ia 4500008004100000041001200041082001900053100003000072245001600102260003400118300001000152650002200162231217s9999    xx            000 0 und d  aEnglish  a620.00425  PSG  aPSG College of Technology 0aDesign data  c1978bPSG College, Coimbatore  a14.8.  aMechanical design