00420nam a22001337a 4500008004100000040005500041080001400096100001400110245006200124260004400186300001000230650002300240653002300263230616b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a621.7bK41 aPetrak, F  aNon cutting shaping: bTechnology of machine construction  aBombay: bAsia Publishing House, c1964  a192p.  aMachine technology  aCasting technology