9. Compaction pin: the pressure in the center, to grind fixture grinding fixture put some pressure. 10. Prevent turn pin: insert in jig anti turn groove, prevent grind chassis rotation. 1. Polishing chassis diameter: 112mm 2. Polishing chassis beating: under 5um 3. Machine net weigh: 24kg 4. Machine size: 450l*220w*500h 5. Polishing time setting: 0~99999.99s 6. Counterweight pressure: 2.1~3.6kgf/cm 5. Equipment parts name