... above 30m 4.16 years professional manufacturer SMW85 Multi-functional Drilling Machine 1. Main Characteristics: *Self ... efficiency.*Applicable to foundation construction of building, bridge, port, retaining structure for subway, water conservancy dam, ... leakage project ,etc. 2.Technical Parameters for SMW Multi-functional drilling Rig: ItemUnitModel SMW65Model SMW85Drill diametermm650850Drill stem ...