Our company was founded in 1990, is sepcialized in the production and operation of mining drilling tools, research and development-oriented. Source manufacturer, Our products include DTH hammer, high and low air pressure DTH bits, drilling rods,thread drilling bits, taper button bits, chisel-bits, crodd-bits, etc; are widely used in energy, metallurgy, coal, water conservancy, chemical industy, mining, and road construction, has been unanimously endorsed by the majority of users. And we also have a professional technical team.