Features
-The double transmit tracks with adding type and high precision bearing in straight line sporting
-The spindle\the stroke electrical machinery of changing frequency and speed in braking.
-The spindle\the movement of the stroke is using double changing frequency machine and adjusting in mate.
-The numeral showing operate screen in board can change the related parameter quickly.
-The double transmit tracks with high precision bearing in straight line sporting, keep the reliability and stability.
-The control of the size have functions of "designating", "timing", ect.