hs code for ball mill for measuring grinding work index
Theball mill work indexlaboratory test is conducted bygrindingan ore sample prepared to 100% passing 3.36 mm (6 mesh) to product size in the range of 45-150 µm (325-100 mesh), thus determining theball mill work index(Wi B or BWi). Thework indexcalculations across a narrow size range are conducted using the appropriate laboratorywork...
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