... , plank typing process2.Independent hydraulic mechanism and electric control systemModel DZ-160DZ-100DZ-70Marking Force 16001000700Working Stroke 20-2520-2520-25Times ... ±5 .10 . 15 . 20 . 25. Length of opening &Closing 50,100,150,200,300,400,450,500,550,600Working Stroke(mm ...