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Personne àcontacter Mr. Zhang
West Suburb,Jiayuguan City,Gansu China, Jiayuguan, Gansu
| Items | First Class |
Second Class
|
| CuSO4·5H2O |
≥*8%
|
≥*6% |
| Ni | ≤0.*2% | ≤0.*4% |
| Zn | ≤0.*8% | ≤0.*6% |
| Pb | ≤0.**6% | ≤0.*1% |
| As | ≤0.**6% | ≤0.*1% |
| Water insolubles | ≤0.1% | ≤0.2% |
| SO4 | ≤0.2% | ≤0.4% |
