HYDX-4 rig is simple and compact in structure, easy for transportation, ... )through hole 154mm(6.06 inch) HYDX-4 full hydraulic core drill rig Verified Information This information is Verified by Bureau ... CE QVC GB/1067/2208/10 Core drilling rig & XY-44, HXY-2A, XY-4, XY-42, HXY-9B, HXY,2BT, ... 2049/12/31 CE Safenet Limited 125020708 Core drilling rig & HYDX-6, HYDX-4, HYDX-5A, HYDX-5B, HYDX-8 2008/07 ...