| 摘要 |
PURPOSE: A polishing pad is provided to keep a stable state for a long time because a bent part of a metal plate covers a rim to prevent damage of a buffer plate. CONSTITUTION: A polishing pad comprises a metal plate(100), a buffer plate(200), velcro tapes(300a,300b), and a polishing plate(400). An annular bent part(110) is formed in the lower side of a rim of the metal plate. The buffer plate is fitted in the bent part of the metal plate. The Velcro tapes are respectively adhered in the lower surface of the metal plate and the upper surface of the buffer plate, and both velcro tapes are attached or separated each other. The polishing plate is attached in underside of the buffer plate.
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