Electrically and Hydraulically Operated Stud Tensioning Machines; Power Operated Drilling and Tunnelling Equipment-Namely, Rotary Tables and Bushings Thereof, Rotary Swivels, Draw Works, Hydraulic Rotary Top Drive Units for Turning Drill Pipes, Clamps, Tongs, Elevators, Mud Pumps, and Liner Compound Units and Machine Tools-Namely, Machines for Cutting, Bending, Milling, Threading, and Lathing

'bend':51 'bush':19 'clamp':34 'compound':41 'cut':50 'draw':23 'drill':10,32 'drive':28 'electr':1 'elev':36 'equip':14 'equipment-nam':13 'hydraul':3,25 'lath':55 'liner':40 'machin':7,44,48 'mill':52 'mud':37 'name':15,47 'oper':4,9 'pipe':33 'power':8 'pump':38 'rotari':16,21,26 'stud':5 'swivel':22 'tabl':17 'tension':6 'thereof':20 'thread':53 'tong':35 'tool':46 'tools-nam':45 'top':27 'tunnel':12 'turn':31 'unit':29,42 'work':24

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