Factory for punching holes for grating services for punching holes for steel plates. Metal, aluminum, stainless steel, mesh, multi-hole, can be made to order And the size that needs to be punched in the mesh hole Drill holes on thin steel sheets. In order to assemble the work piece supporting the large size Operating by machinery Will make the holes on the sheet metal straight, as well as being able to sharpen to prevent danger.We can produce the work quickly, suitable for assembling into various parts Can both sieve Building mask, sunblock, perforated wall, perforated staircase, circular, oval and patterned for beauty