1.High accuracy tracking,speed,and resistence 2.No damage to paper surfacce 3.Wear-resistence,durable,HV>1000 “Mt.Fuji”ROLLER is a kind of machinery tool, adopting the electrochemistry recombination process technology. Its surface is regularly arranged by some fine protrusions (steel stick ) with the same distant, height and similar dimension.The top diameter of the protrusion is 10μm~100μm, ...