| 品牌：海迪 | 型號：規格 | 種類：鉻剛玉 |
| 規格：一級 | 材質：剛玉 | 粒度：F24~220（目） |
| 適用范圍：量具，主軸 | | |
nt face="Arial" size="3"> Pink aluminum oxide, its hardness is close to, but toughness higher than that of WA. The abrasive tools made of it feature excellent durability and high processing cleanness, which are suitable for the precision grinding of the measuring tools, lathe main shafts, instruments and apparatus parts, threading work pieces and samplers, etcnt>
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nt face="Arial" size="3">鉻剛玉硬度與白剛玉近似，韌性比白剛玉高。用其制造的磨具耐用度好，磨加工光澤度高。適用於量具、機床主軸、機表零件、螺紋工件及樣板模等精密磨削。nt>
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Grit | low chromium | medium chromium | high chromium |
Al2O3 | Cr2O3 | Na2O | Al2O3 | Cr2O3 | Na2O | Al2O3 | Cr2O3 | Na2O | |
F12~F80 | ≥98.50 | 0.2~0.45 | ≤0.50 | ≥98.50 | 0.45~1.00 | ≤0.50 | ≥97.40 | 1.00~2.00 | ≤0.55 | |
F90~F150 | ≥98.50 | ≤0.55 | ≥98.20 | ≤0.60 | ≥97.00 | ≤0.60 | |
F180~F220 | ≥98.00 | ≤0.60 | ≥97.80 | ≤0.70 | ≥96.50 | ≤0.70 | |
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