English 
Chinese 
Stepping motor as standard configuration, raising and lowering automatically adjusted and controlled;
●High precision abrasive screw as transmission with auto power off and self-locking function ;
●Wedge-shaped lifting structure, precision cross roller guide rail, motor horizontally placement, compact structure, moving smoothly;
●Up and down limit switch effectively protect the products ,photoelectric switch as start position, high accuracy.;
●Servo motor available, higher speed and precision.
