| 摘要 |
<p>The electric polishing machine has a drive pin (2) which can be fitted with interchangeable polishing discs (9) of differing size which have approximately the same mass. The centre of gravity of the different polishing discs (9) remains in the same position relative to the drive pin (2). The mass of the different polishing discs (9) can be equalised by selecting the thickness of a sheet metal plate (11) mounted at the rear of each disc. ADVANTAGE - Allows use of polishing discs of varying size without affecting drive.</p> |
