00273nam a2200121Ia 4500100001300000490000600013654002200019245005100041260002300092082001600115300000800131546001200139  aE.I.T.B   vI  aNumerical Control  aNumerical Control Or Special Purpose Machining  bE.I.T.BaU.Kc1987  a621.9bEitb  a271  aENGLISH