(1). Whole resin sand of high quality casting,export to DMG company (Germany) for six years continuously and TOSHIBA in Japan,after stress relieving and precision finish,key position use import components and install according to international standard. (2). Our three axis precision grade high rigid line rail use HIWIN(Taiwan) or PMI,C3 grade precision double nuts ballscrew after pre –tight eliminate the intervals between axis,increase the transmission accuracy,make sure the favorable positioning accuracy and resetting accuracy of each axis. This machine is suitable for machining each complex curved surface parts in machinery industry for its high efficiency and performance,especially for high precision mould. (3). we use positive displacement oil distributor,timing and ration to supply oil to each lubrication housings,make sure the uniformity and lubrication of each lubrication surface,decrease slide grind resistance effectively. (4). X,Y,Z three axis exchange servo motor contact precision ballscrew through high precision no backlash,ballscrew and bearing use high precision and rigid like group angle contact ball bearing. (5). repeating accuracy:0.003mm.