The principle of processing methods is using flowing polishing by specially designed fixture to fix work piece and then pressure the soft media flow from button cylinder to top cylinder by up and down continue through workpiece surface, edge, inside hole, special in the full of bumps and hole are usually unable to reach complex polishing area. The polishing performs depend on choice by time or flow rate from computer control to get automatic, economic, efficient result. and polish marks in the same direction flowing it is the most suitable process. 1,Various types of special-shaped dies polishing 2,The irregularly shape workpiece polishing 3,The various of fitting and pipe polishing 4,the aerospace precision parts polishing