Min. Order Reference FOB Price
1 Piece US$42,900.00-52,900.00 / Piece
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. Down-the-hole drilling ...