Chinese Blacksmiths Use Massive Five-Story Hammer To Forge A Flange On The Street I don’t know why but I love watching machinery such as this huge five-story hammer. Facebook Prev Article Next Article Machinery Checkout these cool gadgets... Related Posts Machine prints metal midair This Tree Cutting Machine Is Monstrous (And Monstrously Satisfying) Meet the Machinists Who Keep the New York Times Running Discover The Duke Engine a Different Approach to Combustion Genius Way to Save Parking Space Professor Poliakoff inherits an inventors perpetual motion machine