Oil field equipment, namely, drilling rig mechanical handling machines and devices; Oil field equipment, namely, drilling rig mechanization machines and devices

Drilling Equipment-Namely, Heavy Truck-Mounted Rotary Oil and Gas Well Drills, Rotary Blast Hole Drills, Rotary Water Well Drills, Prospecting and Coring Drills, Crawler-Mounted Rotary Oil and Gas Well Drills, Rotary Blast Hole Drills and Crawler-Mounted Coring Drills