... and operational console with tube voltage ,tube current, and photographic time display on the LCD monitor3.Prestore 8 kinds of photograph parameters ... , column can turn 4*909.Function of load chains, exposure time control ,Start and stop rotating anode, Preheat filament, sub-assembles ... for small focus; 50mA,100mA,150mA,200mA for big focus.Time:0.04~6.3sX-ray tubeModelXD51-20.40/125FocusSmall focus ...