on 13 Nov 2020 By rainbowstargt501 DTH Hole Opener Category: OIL & GAS SUPPLIES Description Description Product decription: Use Well Drilling,Ore Mining Machine Type Drilling Tool Processing Type Casting Type Drill Bit Material High Manganese Steel,Tungsten Carbide Related products Drag bits Read more Drill rods Read more Shale shaker screen Read more Drag Bits Read more