| 摘要 |
PCT No. PCT/US95/04325 Sec. 371 Date Oct. 16, 1996 Sec. 102(e) Date Oct. 16, 1996 PCT Filed Apr. 18, 1995 PCT Pub. No. WO95/28703 PCT Pub. Date Oct. 26, 1995The present invention relates to a highly smooth zirconia-containing disk substrate produced by polishing a defect-free surface with fine diamond and/or alumina.
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