ChinaCoreDrillRigsSuppliers Product Description XY-2BT /4T/42T/44T series core drilling rig with tower is based on XY-2B/4/42/44 type core drilling machine and mast type drilling tower in one of the integral core drilling rigs. This series core drilling rig both retained the original drill compact structure, rational layout, lightweight, good can be disassembled and reasonable speed range,...