Min. Order Reference FOB Price
1 set US$42,000.00-530,000.00 / set
Product Description
Product Description The down-the-hole drilling rig uses the impactor and drill bit that dive into the bottom of the hole to impact and crush the rock, so it is called a down-the-hole drilling rig. Widely used in metal mines, hydropower, transportation, building materials, harbors and engineering. ...