integration of machinery product, it synthesized the electronic accounting machine,
the automatic control, the automatic detection, the hydraulic pressure and the aspect
and so on air operated as well as precision machinery technologies.The  numerical
control   machine  high   accuracy,   the   high   efficiency   had   decided   the   development
numerical   control   machine  is   the   current   Chinese   manufacturing   industry
technological   transformations   way   that   must   be   taken,   will   be   the   future   factory
automation foundation.

Key word：trend of development ，principle，numerical control machine