XY-4 Core Drilling Rig
XY-42A Core Drilling Rig
XY-44A Core Drilling Rig
HXY-5A Core Drilling Rig
HXY-6A Core Drilling Rig
HXY-6B Core Drilling Rig
HXY-8 Core Drilling Rig
HXY-8B Core Drilling Rig
HXY-9 Core Drilling Rig
HXY-9B Core Drilling Rig