| 摘要 |
<p>A ramp for a hard disc which comprises a formed polyacetal resin and has a surface hardness of 2.6 GPa or more. The polyacetal resin ramp exhibits excellent processability and is significantly reduced in the abrasion of the resin part of the ramp associated with the use of the hard disk, and thus is suitable as a ramp within a hard disc drive for housing and guiding a head thereof.</p> |
