Product Description: The Reverse Circulation Drilling Rig is a powerful and efficient Geological Drilling Rig Machine designed for various drilling operations. With its impressive dimensions of 7*2.1*2.9 meters, this rig offers a sturdy and reliable platform for drilling projects in different terrains and conditions. One of the key features of this Geological Drilling Rig Machine is its versatile air pressure range, which can be adjusted from 1.6 to 6 bar to suit the specific