1.materials used by the concentrator

1) magnetic mines;

2) concentrator grade ≥ 68, the recovery rate ≥ 60%

3)The content of sulfur, phosphorus, silicon, aluminum is below the requirements of the National Standards of the Peoples Republic of China.

4) the colors of powder should not be red and yellow (black or cyan is required)

5) grain size (ore) <25MM

2. black coarse powder> 64% grade.

3. place of origin: Philippines, Indonesia. Turkey, etc.

4. demand quantitiy: 30,000-50,000 tons per month; the price should be stable; a long-term cooperation is favoured.