QZD-400A                                                                                                          

    1.No velhead design (sub stance,legerity,free rotate at 360 degree)
2.Full automatic replacement,combined type oil valve,convenience in maintain,little trouble
Twin zone hydraulic system
Quickly ot the compression joint,more accurately
3.Hand-load button (compression joint midway loose,fast replacement)
4.Prevent-slip handle
to ensure tight press connection.