| بيع الوحدات | : | Ton |
| مثال الصورة | : |
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المواد الخام لصنع محفزات الأكسدة
حمض الكروم البلوري
(1) CRO 3 Ω/٪ ≥99.8
(2) na ＋ ≤ 0.0 8
(3) Cl － ≤ 0.0 04
(4) حتى 4 2- Ω/٪ ≤ 0.0 03
(5) غير قابل للذوبان ω/٪ ≤ 0.0 01
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