It is gantry symmetrical structure and with little thermal deformation.The cast iron is made in shape if high tensile radian,resin sand.Features consist of vibration proof,strong rigidity and stability,rapid processing,high precision.Due to its crossbeam guide rail uses ladder type,the gravity of Z Axis is much more outstanding,the spindle moves steadily.Besides,we can also use natural marble as lathe.It is mainly used to engrave different kinds of complicated metal molds,electrodes,hardware,shoes molds,injection mould and handicrafts.