911David

re vibrating screen efficiency calculation

I find this way of calculating screen efficiency much faster  https://www.911metallurgist.com/blog/formula-to-calc...

re Diffrence Between XRF & XRD or chemical analysis

See  https://www.911metallurgist.com/blog/difference-between-xrf-and-xrd and  https://www.youtube.com/watch?v=...

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