- Recovery of multi-Con, transport, injection, projection, gushing, a polishing machine to control the dropping. - To a multi-cone recovered from the lower portion of the dropping device carried by a conveyor belt to thereby put the upper shooter of the apparatus in a multi-injection rotary cone from the shooter. - Precision polishing for irregular or narrow shape by using special abrasives named Multicon which is made by a kind of Protein. So this material can give some moisture, then they can be easily gliding the surface of required goods. By using their softness, the surface easily polished without any special know-how or long-term experienced skills in this field. - Multi-Con is projected by centrifugal force takes place by rotating the rotary disc is gushing through a nozzle. Air supply nozzle is fixed parallel to the outside of the air blown out spray nozzle, the workpiece given the acceleration of the multi-cone help the remaining multi-cone scattering and simultaneously increase the efficiency.