首页>
外国专利>
Device for Mineral extraction or construction of road tunnels, with an impact Rotary Tool, with a Hollow Shaft Bearing rotatably in the HousingIncludes a cycloid thruster located in the outside of the Hollow Shaft whose input and output shafts are formed by eccentric shaft.
Device for Mineral extraction or construction of road tunnels, with an impact Rotary Tool, with a Hollow Shaft Bearing rotatably in the HousingIncludes a cycloid thruster located in the outside of the Hollow Shaft whose input and output shafts are formed by eccentric shaft.