Polishing Carrier
Carrier for Lapping and Polishing.
  Glass hard Disk
  Aluminum Hard Disk
  Silicon Wafer

Glass Hard Disk
  Necessary functions: No-scratches
                        : Not warped
                        : Thickness
                        : Flatness
                        : Strength
  Need material  : Steel + Resin --> Non-fiber Resinification

Aluminum Hard Disk
  Necessary functions: No-scratches
                        : Not warped
                        : Thickness
                        : Flatness
                        : Strength
                        : Cost reduction
  Need material  : Aramid --> Resinification with Low cost

Silicon Wafer
  Necessary functions: No-scratches
                        : Not warped
                        : Thickness
                        : Flatness
                        : Strength
Need material : Steel + Resin --> Resinification without


heavy metal contamination