... .0±1.010.5±1.0ds9425.02.41264. ABRASIVE Manufacturer Brief:Zhengzhou Yellow River (ZYR) Abrasives Co. Ltd, which was ... including Black & Green Silicon Carbide, White, Brown Fused Aluminum Oxide. The production and quality are in accord with GB, ISO, JIS ... sifting20Induced draft ball mill2Acid/alkali cleaning tank60Air flow classifier15Magnetic separator8 The First Class Abrasive of white AL2O3 powder